diff --git a/README.md b/README.md
index 613aaa4..343e4fd 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ PIN FOR YOU는 **상품권/모바일 교환권(기프티콘) 거래/구매**를
 보안(핀번호/민감정보), 결제 연동, 회원 인증, 운영 안정성을 최우선으로 설계합니다.
 
 ---
+컨테이너 안에서 tinker 사용방법
+HOME=/tmp XDG_CONFIG_HOME=/tmp php artisan tinker
 
 ## 문서(Documentation)
 
diff --git a/app/Http/Controllers/Admin/Auth/AdminAuthController.php b/app/Http/Controllers/Admin/Auth/AdminAuthController.php
index d954277..d8f2356 100644
--- a/app/Http/Controllers/Admin/Auth/AdminAuthController.php
+++ b/app/Http/Controllers/Admin/Auth/AdminAuthController.php
@@ -290,4 +290,65 @@ final class AdminAuthController extends Controller
 
         return redirect()->route('admin.login.form');
     }
+
+    public function security(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $vm = $this->authService->totpViewModel($adminId);
+
+        abort_unless(($vm['ok'] ?? false), 404);
+        return view('admin.me.security', $vm);
+    }
+
+    public function totpStart(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $res = $this->authService->totpStart($adminId, false);
+
+        return back()->with($res['ok'] ? 'status' : 'error', $res['message']);
+    }
+
+    public function totpConfirm(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $data = $request->validate([
+            'code' => ['required', 'string', 'max:10'],
+        ]);
+
+        $res = $this->authService->totpConfirm($adminId, (string) $data['code']);
+
+        return redirect()->route('admin.security')
+            ->with($res['ok'] ? 'status' : 'error', $res['message']);
+    }
+
+    public function totpDisable(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $res = $this->authService->totpDisable($adminId);
+
+        return redirect()->route('admin.security')
+            ->with($res['ok'] ? 'status' : 'error', $res['message']);
+    }
+
+    public function totpReset(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $res = $this->authService->totpReset($adminId);
+
+        return redirect()->route('admin.security')
+            ->with($res['ok'] ? 'status' : 'error', $res['message']);
+    }
+
+    public function totpMode(Request $request)
+    {
+        $adminId = (int) auth()->guard('admin')->id();
+        $data = $request->validate([
+            'totp_enabled' => ['required', 'in:0,1'],
+        ]);
+
+        $res = $this->authService->totpMode($adminId, (int) $data['totp_enabled']);
+
+        return redirect()->route('admin.security')
+            ->with($res['ok'] ? 'status' : 'error', $res['message']);
+    }
 }
diff --git a/app/Repositories/Admin/AdminUserRepository.php b/app/Repositories/Admin/AdminUserRepository.php
index b9cb79a..c7334cc 100644
--- a/app/Repositories/Admin/AdminUserRepository.php
+++ b/app/Repositories/Admin/AdminUserRepository.php
@@ -486,4 +486,41 @@ final class AdminUserRepository
             $vals
         );
     }
+
+    public function updateTotpStart(int $id, string $secretEnc): bool
+    {
+        return DB::table('admin_users')->where('id', $id)->update([
+                'totp_secret_enc'   => $secretEnc,
+                'totp_verified_at'  => null,
+                'totp_enabled'      => 0,     // 등록 완료 전에는 SMS로 유지
+                'updated_at'        => now(),
+            ]) > 0;
+    }
+
+    public function confirmTotp(int $id): bool
+    {
+        return DB::table('admin_users')->where('id', $id)->update([
+                'totp_verified_at' => now(),
+                'totp_enabled'     => 1,      // 등록 완료되면 OTP 사용으로 전환(원하면 0 유지로 바꿔도 됨)
+                'updated_at'       => now(),
+            ]) > 0;
+    }
+
+    public function disableTotp(int $id): bool
+    {
+        return DB::table('admin_users')->where('id', $id)->update([
+                'totp_secret_enc'  => null,
+                'totp_verified_at' => null,
+                'totp_enabled'     => 0,
+                'updated_at'       => now(),
+            ]) > 0;
+    }
+
+    public function updateTotpMode(int $id, int $enabled): bool
+    {
+        return DB::table('admin_users')->where('id', $id)->update([
+                'totp_enabled' => $enabled ? 1 : 0,
+                'updated_at'   => now(),
+            ]) > 0;
+    }
 }
diff --git a/app/Services/Admin/AdminAuthService.php b/app/Services/Admin/AdminAuthService.php
index d9ae049..a6c7471 100644
--- a/app/Services/Admin/AdminAuthService.php
+++ b/app/Services/Admin/AdminAuthService.php
@@ -10,12 +10,18 @@ use Illuminate\Support\Facades\Hash;
 use Illuminate\Support\Str;
 use Illuminate\Support\Facades\Crypt;
 use Illuminate\Support\Facades\Log;
+use BaconQrCode\Renderer\Image\SvgImageBackEnd;
+use BaconQrCode\Renderer\ImageRenderer;
+use BaconQrCode\Renderer\RendererStyle\RendererStyle;
+use BaconQrCode\Writer;
+use Laravel\Fortify\Contracts\TwoFactorAuthenticationProvider;
 
 final class AdminAuthService
 {
     public function __construct(
         private readonly AdminUserRepository $users,
         private readonly SmsService $sms,
+        private readonly TwoFactorAuthenticationProvider $totpProvider,
     ) {}
 
     /**
@@ -272,4 +278,133 @@ final class AdminAuthService
         if (strlen($digits) < 7) return $digits;
         return substr($digits, 0, 3) . '-****-' . substr($digits, -4);
     }
+
+    public function totpViewModel(int $adminId): array
+    {
+        $admin = $this->users->find($adminId);
+        if (!$admin) {
+            return ['ok' => false, 'message' => '관리자 정보를 찾을 수 없습니다.'];
+        }
+
+        $secret = '';
+        if (!empty($admin->totp_secret_enc)) {
+            try {
+                $secret = Crypt::decryptString((string) $admin->totp_secret_enc);
+            } catch (\Throwable $e) {
+                $secret = '';
+            }
+        }
+
+        $isRegistered = ($secret !== '') && !empty($admin->totp_verified_at);
+        $isPending    = ($secret !== '') && empty($admin->totp_verified_at);
+
+        $issuer = (string) (config('app.name') ?: 'Admin');
+        $email  = (string) ($admin->email ?? '');
+
+        $otpauthUrl = '';
+        $qrSvg = '';
+
+        if ($isPending) {
+            // Fortify provider가 otpauth URL 생성
+            $otpauthUrl = $this->totpProvider->qrCodeUrl($issuer, $email, $secret);
+
+            // QR SVG 생성 (bacon/bacon-qr-code)
+            $writer = new Writer(
+                new ImageRenderer(new RendererStyle(180), new SvgImageBackEnd())
+            );
+            $qrSvg = $writer->writeString($otpauthUrl);
+        }
+
+        return [
+            'ok'          => true,
+            'admin'       => $admin,
+            'isRegistered'=> $isRegistered,
+            'isPending'   => $isPending,
+            'secret'      => $secret,     // pending 때만 화면에서 노출
+            'qrSvg'       => $qrSvg,
+        ];
+    }
+
+    /** 등록 시작(시크릿 생성) */
+    public function totpStart(int $adminId, bool $forceReset = false): array
+    {
+        $admin = $this->users->find($adminId);
+        if (!$admin) return ['ok' => false, 'message' => '관리자 정보를 찾을 수 없습니다.'];
+
+        if (!$forceReset && !empty($admin->totp_verified_at) && !empty($admin->totp_secret_enc)) {
+            return ['ok' => false, 'message' => '이미 Google OTP가 등록되어 있습니다.'];
+        }
+
+        // 새 시크릿 생성(기본 16)
+        $secret = $this->totpProvider->generateSecretKey(16); // :contentReference[oaicite:2]{index=2}
+        $secretEnc = Crypt::encryptString($secret);
+
+        $ok = $this->users->updateTotpStart($adminId, $secretEnc);
+        if (!$ok) return ['ok' => false, 'message' => 'OTP 등록 시작에 실패했습니다.'];
+
+        return ['ok' => true, 'message' => 'Google OTP 등록을 시작합니다. 앱에서 QR을 스캔한 뒤 인증코드를 입력해 주세요.'];
+    }
+
+    /** 등록 확인(코드 검증) */
+    public function totpConfirm(int $adminId, string $code): array
+    {
+        $vm = $this->totpViewModel($adminId);
+        if (!($vm['ok'] ?? false)) return ['ok' => false, 'message' => $vm['message'] ?? '오류'];
+
+        if (!($vm['isPending'] ?? false)) {
+            return ['ok' => false, 'message' => 'OTP 등록 진행 상태가 아닙니다.'];
+        }
+
+        $secret = (string) ($vm['secret'] ?? '');
+        if ($secret === '') return ['ok' => false, 'message' => 'OTP 시크릿을 읽을 수 없습니다. 다시 등록을 시작해 주세요.'];
+
+        $code = preg_replace('/\D+/', '', $code);
+        if (strlen($code) !== 6) return ['ok' => false, 'message' => '인증코드는 6자리 숫자여야 합니다.'];
+
+        // Fortify provider로 검증 :contentReference[oaicite:3]{index=3}
+        $valid = $this->totpProvider->verify($secret, $code);
+        if (!$valid) return ['ok' => false, 'message' => '인증코드가 올바르지 않습니다. 다시 확인해 주세요.'];
+
+        $ok = $this->users->confirmTotp($adminId);
+        if (!$ok) return ['ok' => false, 'message' => 'OTP 등록 완료 처리에 실패했습니다.'];
+
+        return ['ok' => true, 'message' => 'Google OTP 등록이 완료되었습니다.'];
+    }
+
+    /** 삭제(해제) */
+    public function totpDisable(int $adminId): array
+    {
+        $admin = $this->users->find($adminId);
+        if (!$admin) return ['ok' => false, 'message' => '관리자 정보를 찾을 수 없습니다.'];
+
+        $ok = $this->users->disableTotp($adminId);
+        if (!$ok) return ['ok' => false, 'message' => 'Google OTP 삭제에 실패했습니다.'];
+
+        return ['ok' => true, 'message' => 'Google OTP가 삭제되었습니다. 이제 SMS 인증을 사용합니다.'];
+    }
+
+    /** 재등록(새 시크릿 발급) */
+    public function totpReset(int $adminId): array
+    {
+        // 그냥 start(force=true)로 처리
+        return $this->totpStart($adminId, true);
+    }
+
+    /** sms/otp 모드 저장(선택) */
+    public function totpMode(int $adminId, int $enabled): array
+    {
+        $admin = $this->users->find($adminId);
+        if (!$admin) return ['ok' => false, 'message' => '관리자 정보를 찾을 수 없습니다.'];
+
+        if ($enabled === 1) {
+            if (empty($admin->totp_secret_enc) || empty($admin->totp_verified_at)) {
+                return ['ok' => false, 'message' => 'Google OTP 미등록 상태에서는 OTP 인증으로 전환할 수 없습니다.'];
+            }
+        }
+
+        $ok = $this->users->updateTotpMode($adminId, $enabled ? 1 : 0);
+        if (!$ok) return ['ok' => false, 'message' => '2차 인증방법 저장에 실패했습니다.'];
+
+        return ['ok' => true, 'message' => '2차 인증방법이 저장되었습니다.'];
+    }
 }
diff --git a/bootstrap/providers.php b/bootstrap/providers.php
index 38b258d..0ad9c57 100644
--- a/bootstrap/providers.php
+++ b/bootstrap/providers.php
@@ -2,4 +2,5 @@
 
 return [
     App\Providers\AppServiceProvider::class,
+    App\Providers\FortifyServiceProvider::class,
 ];
diff --git a/composer.json b/composer.json
index 44c6054..d783f8f 100644
--- a/composer.json
+++ b/composer.json
@@ -7,6 +7,7 @@
     "license": "MIT",
     "require": {
         "php": "^8.2",
+        "laravel/fortify": "^1.34",
         "laravel/framework": "^12.0",
         "laravel/tinker": "^2.10.1"
     },
diff --git a/composer.lock b/composer.lock
index 70ec0d2..d75dd93 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,63 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c514d8f7b9fc5970bdd94287905ef584",
+    "content-hash": "7dd899a9877c179228369caa0361b2cc",
     "packages": [
+        {
+            "name": "bacon/bacon-qr-code",
+            "version": "v3.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Bacon/BaconQrCode.git",
+                "reference": "36a1cb2b81493fa5b82e50bf8068bf84d1542563"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Bacon/BaconQrCode/zipball/36a1cb2b81493fa5b82e50bf8068bf84d1542563",
+                "reference": "36a1cb2b81493fa5b82e50bf8068bf84d1542563",
+                "shasum": ""
+            },
+            "require": {
+                "dasprid/enum": "^1.0.3",
+                "ext-iconv": "*",
+                "php": "^8.1"
+            },
+            "require-dev": {
+                "phly/keep-a-changelog": "^2.12",
+                "phpunit/phpunit": "^10.5.11 || ^11.0.4",
+                "spatie/phpunit-snapshot-assertions": "^5.1.5",
+                "spatie/pixelmatch-php": "^1.2.0",
+                "squizlabs/php_codesniffer": "^3.9"
+            },
+            "suggest": {
+                "ext-imagick": "to generate QR code images"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "BaconQrCode\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "BaconQrCode is a QR code generator for PHP.",
+            "homepage": "https://github.com/Bacon/BaconQrCode",
+            "support": {
+                "issues": "https://github.com/Bacon/BaconQrCode/issues",
+                "source": "https://github.com/Bacon/BaconQrCode/tree/v3.0.3"
+            },
+            "time": "2025-11-19T17:15:36+00:00"
+        },
         {
             "name": "brick/math",
             "version": "0.14.1",
@@ -135,6 +190,56 @@
             ],
             "time": "2024-02-09T16:56:22+00:00"
         },
+        {
+            "name": "dasprid/enum",
+            "version": "1.0.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/DASPRiD/Enum.git",
+                "reference": "b5874fa9ed0043116c72162ec7f4fb50e02e7cce"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/DASPRiD/Enum/zipball/b5874fa9ed0043116c72162ec7f4fb50e02e7cce",
+                "reference": "b5874fa9ed0043116c72162ec7f4fb50e02e7cce",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1 <9.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7 || ^8 || ^9 || ^10 || ^11",
+                "squizlabs/php_codesniffer": "*"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "DASPRiD\\Enum\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP 7.1 enum implementation",
+            "keywords": [
+                "enum",
+                "map"
+            ],
+            "support": {
+                "issues": "https://github.com/DASPRiD/Enum/issues",
+                "source": "https://github.com/DASPRiD/Enum/tree/1.0.7"
+            },
+            "time": "2025-09-16T12:23:56+00:00"
+        },
         {
             "name": "dflydev/dot-access-data",
             "version": "v3.0.3",
@@ -1052,6 +1157,69 @@
             ],
             "time": "2025-08-22T14:27:06+00:00"
         },
+        {
+            "name": "laravel/fortify",
+            "version": "v1.34.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laravel/fortify.git",
+                "reference": "412575e9c0cb21d49a30b7045ad4902019f538c2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laravel/fortify/zipball/412575e9c0cb21d49a30b7045ad4902019f538c2",
+                "reference": "412575e9c0cb21d49a30b7045ad4902019f538c2",
+                "shasum": ""
+            },
+            "require": {
+                "bacon/bacon-qr-code": "^3.0",
+                "ext-json": "*",
+                "illuminate/console": "^10.0|^11.0|^12.0|^13.0",
+                "illuminate/support": "^10.0|^11.0|^12.0|^13.0",
+                "php": "^8.1",
+                "pragmarx/google2fa": "^9.0"
+            },
+            "require-dev": {
+                "orchestra/testbench": "^8.36|^9.15|^10.8|^11.0",
+                "phpstan/phpstan": "^1.10"
+            },
+            "type": "library",
+            "extra": {
+                "laravel": {
+                    "providers": [
+                        "Laravel\\Fortify\\FortifyServiceProvider"
+                    ]
+                },
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Laravel\\Fortify\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Taylor Otwell",
+                    "email": "taylor@laravel.com"
+                }
+            ],
+            "description": "Backend controllers and scaffolding for Laravel authentication.",
+            "keywords": [
+                "auth",
+                "laravel"
+            ],
+            "support": {
+                "issues": "https://github.com/laravel/fortify/issues",
+                "source": "https://github.com/laravel/fortify"
+            },
+            "time": "2026-02-03T06:55:55+00:00"
+        },
         {
             "name": "laravel/framework",
             "version": "v12.45.1",
@@ -2526,6 +2694,75 @@
             ],
             "time": "2025-11-20T02:34:59+00:00"
         },
+        {
+            "name": "paragonie/constant_time_encoding",
+            "version": "v3.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/paragonie/constant_time_encoding.git",
+                "reference": "d5b01a39b3415c2cd581d3bd3a3575c1ebbd8e77"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/paragonie/constant_time_encoding/zipball/d5b01a39b3415c2cd581d3bd3a3575c1ebbd8e77",
+                "reference": "d5b01a39b3415c2cd581d3bd3a3575c1ebbd8e77",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^8"
+            },
+            "require-dev": {
+                "infection/infection": "^0",
+                "nikic/php-fuzzer": "^0",
+                "phpunit/phpunit": "^9|^10|^11",
+                "vimeo/psalm": "^4|^5|^6"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "ParagonIE\\ConstantTime\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paragon Initiative Enterprises",
+                    "email": "security@paragonie.com",
+                    "homepage": "https://paragonie.com",
+                    "role": "Maintainer"
+                },
+                {
+                    "name": "Steve 'Sc00bz' Thomas",
+                    "email": "steve@tobtu.com",
+                    "homepage": "https://www.tobtu.com",
+                    "role": "Original Developer"
+                }
+            ],
+            "description": "Constant-time Implementations of RFC 4648 Encoding (Base-64, Base-32, Base-16)",
+            "keywords": [
+                "base16",
+                "base32",
+                "base32_decode",
+                "base32_encode",
+                "base64",
+                "base64_decode",
+                "base64_encode",
+                "bin2hex",
+                "encoding",
+                "hex",
+                "hex2bin",
+                "rfc4648"
+            ],
+            "support": {
+                "email": "info@paragonie.com",
+                "issues": "https://github.com/paragonie/constant_time_encoding/issues",
+                "source": "https://github.com/paragonie/constant_time_encoding"
+            },
+            "time": "2025-09-24T15:06:41+00:00"
+        },
         {
             "name": "phpoption/phpoption",
             "version": "1.9.5",
@@ -2601,6 +2838,58 @@
             ],
             "time": "2025-12-27T19:41:33+00:00"
         },
+        {
+            "name": "pragmarx/google2fa",
+            "version": "v9.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/antonioribeiro/google2fa.git",
+                "reference": "e6bc62dd6ae83acc475f57912e27466019a1f2cf"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/antonioribeiro/google2fa/zipball/e6bc62dd6ae83acc475f57912e27466019a1f2cf",
+                "reference": "e6bc62dd6ae83acc475f57912e27466019a1f2cf",
+                "shasum": ""
+            },
+            "require": {
+                "paragonie/constant_time_encoding": "^1.0|^2.0|^3.0",
+                "php": "^7.1|^8.0"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1.9",
+                "phpunit/phpunit": "^7.5.15|^8.5|^9.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "PragmaRX\\Google2FA\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Antonio Carlos Ribeiro",
+                    "email": "acr@antoniocarlosribeiro.com",
+                    "role": "Creator & Designer"
+                }
+            ],
+            "description": "A One Time Password Authentication package, compatible with Google Authenticator.",
+            "keywords": [
+                "2fa",
+                "Authentication",
+                "Two Factor Authentication",
+                "google2fa"
+            ],
+            "support": {
+                "issues": "https://github.com/antonioribeiro/google2fa/issues",
+                "source": "https://github.com/antonioribeiro/google2fa/tree/v9.0.0"
+            },
+            "time": "2025-09-19T22:51:08+00:00"
+        },
         {
             "name": "psr/clock",
             "version": "1.0.0",
diff --git a/resources/views/admin/me/security.blade.php b/resources/views/admin/me/security.blade.php
new file mode 100644
index 0000000..e528311
--- /dev/null
+++ b/resources/views/admin/me/security.blade.php
@@ -0,0 +1,140 @@
+@extends('admin.layouts.app')
+
+@section('title', '보안 설정 (2차 인증)')
+
+@section('content')
+    <div class="a-panel">
+        <div style="display:flex; justify-content:space-between; align-items:flex-start; gap:12px; flex-wrap:wrap;">
+            <div>
+                <div style="font-weight:900; font-size:16px;">2차 인증 (Google OTP)</div>
+                <div class="a-muted" style="font-size:12px; margin-top:4px;">
+                    SMS 또는 Google OTP(TOTP)로 2차 인증을 진행합니다.
+                </div>
+            </div>
+
+            <a class="a-btn a-btn--ghost a-btn--sm" href="{{ route('admin.me') }}" style="width:auto;">뒤로가기</a>
+        </div>
+    </div>
+
+    <div style="height:12px;"></div>
+
+    {{-- 이용 안내 --}}
+    <div class="a-panel">
+        <div style="font-weight:900; margin-bottom:6px;">이용 안내</div>
+        <div class="a-muted" style="font-size:13px; line-height:1.55;">
+            1) Google Authenticator / Microsoft Authenticator 등 앱 설치<br>
+            2) 등록 시작 → QR 스캔(또는 시크릿 수동 입력)<br>
+            3) 앱에 표시되는 6자리 코드를 입력해 등록 완료<br>
+            4) 필요 시 재등록(새 시크릿 발급) 또는 삭제 가능
+        </div>
+    </div>
+
+    <div style="height:12px;"></div>
+
+    {{-- 상태/모드 --}}
+    <div class="a-panel">
+        <div style="display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; align-items:center;">
+            <div>
+                <div style="font-weight:900;">현재 상태</div>
+                <div style="margin-top:6px;">
+                    @if($isRegistered)
+                        <span class="a-pill a-pill--ok">Google OTP 등록됨</span>
+                        <span class="a-muted" style="font-size:12px; margin-left:6px;">({{ $admin->totp_verified_at }})</span>
+                    @elseif($isPending)
+                        <span class="a-pill a-pill--warn">등록 진행 중</span>
+                    @else
+                        <span class="a-pill a-pill--muted">미등록</span>
+                    @endif
+                </div>
+            </div>
+
+            <form method="POST" action="{{ route('admin.totp.mode') }}" style="display:flex; gap:8px; align-items:center; flex-wrap:wrap;">
+                @csrf
+                <label class="a-muted" style="font-size:13px;">2차 인증방법</label>
+                <select class="a-input a-input--sm" name="totp_enabled" style="width:180px;">
+                    <option value="0" {{ (int)($admin->totp_enabled ?? 0) === 0 ? 'selected' : '' }}>SMS 인증</option>
+                    <option value="1"
+                        {{ (int)($admin->totp_enabled ?? 0) === 1 ? 'selected' : '' }}
+                        {{ !$isRegistered ? 'disabled' : '' }}
+                    >Google OTP 인증</option>
+                </select>
+                <button class="a-btn a-btn--primary a-btn--sm" type="submit" style="width:auto;">저장</button>
+
+                @if(!$isRegistered)
+                    <div class="a-muted" style="font-size:12px; width:100%;">
+                        ※ Google OTP 미등록 상태에서는 OTP 인증으로 전환할 수 없습니다.
+                    </div>
+                @endif
+            </form>
+        </div>
+    </div>
+
+    <div style="height:12px;"></div>
+
+    {{-- 등록/확인 UI --}}
+    @if($isPending)
+        <div class="a-panel">
+            <div style="font-weight:900; margin-bottom:10px;">등록 진행</div>
+
+            <div class="a-grid2">
+                <div class="a-card" style="padding:14px;">
+                    <div class="a-muted" style="font-size:12px; margin-bottom:8px;">QR 코드 스캔</div>
+                    <div style="background:#fff; border-radius:14px; padding:12px; display:inline-block;">
+                        {!! $qrSvg !!}
+                    </div>
+                </div>
+
+                <div class="a-card" style="padding:14px;">
+                    <div class="a-muted" style="font-size:12px; margin-bottom:6px;">시크릿(수동 입력용)</div>
+                    <div class="a-mono" style="font-weight:900; font-size:16px; letter-spacing:.08em;">
+                        {{ $secret }}
+                    </div>
+
+                    <div style="height:10px;"></div>
+
+                    <form method="POST" action="{{ route('admin.totp.confirm') }}">
+                        @csrf
+                        <label class="a-label">앱에 표시된 6자리 인증코드</label>
+                        <input class="a-input a-otp-input" name="code" inputmode="numeric" autocomplete="one-time-code" placeholder="123456">
+                        @error('code') <div class="a-error">{{ $message }}</div> @enderror
+
+                        <button class="a-btn a-btn--primary" type="submit" style="margin-top:12px;">
+                            등록 완료
+                        </button>
+                    </form>
+
+                    <form method="POST" action="{{ route('admin.totp.disable') }}" style="margin-top:10px;"
+                          data-confirm="등록을 취소하고 OTP 정보를 삭제할까요?">
+                        @csrf
+                        <button class="a-btn a-btn--danger" type="submit">등록 취소(삭제)</button>
+                    </form>
+                </div>
+            </div>
+        </div>
+    @else
+        {{-- 미등록 / 등록됨 --}}
+        <div class="a-panel">
+            <div style="display:flex; gap:8px; flex-wrap:wrap;">
+                @if(!$isRegistered)
+                    <form method="POST" action="{{ route('admin.totp.start') }}"
+                          data-confirm="Google OTP 등록을 시작할까요?\nQR 스캔 후 6자리 코드를 입력해야 완료됩니다.">
+                        @csrf
+                        <button class="a-btn a-btn--primary" type="submit" style="width:auto;">등록 시작</button>
+                    </form>
+                @else
+                    <form method="POST" action="{{ route('admin.totp.reset') }}"
+                          data-confirm="Google OTP를 재등록할까요?\n새 시크릿이 발급되며 기존 등록은 무효화됩니다.">
+                        @csrf
+                        <button class="a-btn a-btn--primary" type="submit" style="width:auto;">재등록(수정)</button>
+                    </form>
+
+                    <form method="POST" action="{{ route('admin.totp.disable') }}"
+                          data-confirm="Google OTP를 삭제할까요?\n삭제 후에는 SMS 인증을 사용합니다.">
+                        @csrf
+                        <button class="a-btn a-btn--danger" type="submit" style="width:auto;">삭제</button>
+                    </form>
+                @endif
+            </div>
+        </div>
+    @endif
+@endsection
diff --git a/resources/views/admin/me/show.blade.php b/resources/views/admin/me/show.blade.php
index 9d958d2..3205fee 100644
--- a/resources/views/admin/me/show.blade.php
+++ b/resources/views/admin/me/show.blade.php
@@ -67,25 +67,45 @@
                     </div>
                 </div>
 
+                @php
+                    $hasSecret   = !empty($me->totp_secret_enc);
+                    $isVerified  = !empty($me->totp_verified_at);
+                    $isEnabled   = (int)($me->totp_enabled ?? 0) === 1;
+                @endphp
+
                 <div class="a-meinfo">
                     <div class="a-meinfo__row">
                         <div class="a-meinfo__k">2FA 모드</div>
                         <div class="a-meinfo__v">
-                            <span class="a-pill">{{ $me->two_factor_mode ?? 'sms' }}</span>
+                            <span class="a-pill">{{ ($isEnabled=='1') ? 'google TOPT' : 'SMS' }}</span>
                         </div>
                     </div>
 
                     <div class="a-meinfo__row">
                         <div class="a-meinfo__k">TOTP</div>
                         <div class="a-meinfo__v">
-                            @if((int)($me->totp_enabled ?? 0) === 1)
-                                <span class="a-pill a-pill--ok">Enabled</span>
+                            @php
+                                $hasSecret  = !empty($me->totp_secret_enc);       // 버튼 기준 (등록 플로우 진입 여부)
+                                $isVerified = !empty($me->totp_verified_at);      // 등록 완료 여부
+                                $isModeOtp  = (int)($me->totp_enabled ?? 0) === 1; // 현재 로그인 인증 방식 표시용(조건 X)
+                            @endphp
+
+                            {{-- 1) 등록 상태 표시 (등록/미등록/진행중) --}}
+                            @if($hasSecret && $isVerified)
+                                <span class="a-pill a-pill--ok">TOTP 등록됨</span>
+                                <span class="a-muted" style="margin-left:8px; font-size:12px;">
+                                <BR>({{ $me->totp_verified_at }})
+                            </span>
+                            @elseif($hasSecret && !$isVerified)
+                                <span class="a-pill a-pill--warn">등록 진행중</span>
+                                <span class="a-muted" style="margin-left:8px; font-size:12px;">
+                                (인증코드 확인 필요)
+                            </span>
                             @else
-                                <span class="a-pill a-pill--muted">Disabled</span>
+                                <span class="a-pill a-pill--muted">미등록</span>
                             @endif
                         </div>
                     </div>
-
                     <div class="a-meinfo__row">
                         <div class="a-meinfo__k">내 역할</div>
                         <div class="a-meinfo__v">
@@ -127,8 +147,21 @@
                     비밀번호 변경
                 </a>
 
+
                 <div class="a-muted" style="font-size:12px; margin-top:10px;">
-                    ※ TOTP 설정/리셋은 다음 단계(권한/역할) 작업 때 함께 붙이는 게 안전합니다.
+                    <div style="margin-top:10px;">
+                        @if(!$hasSecret)
+                            <a class="a-btn a-btn--primary a-btn--sm" style="width:auto;"
+                               href="{{ route('admin.security') }}">
+                                Google OTP 등록
+                            </a>
+                        @else
+                            <a class="a-btn a-btn--ghost a-btn--sm" style="width:auto;"
+                               href="{{ route('admin.security') }}">
+                                2FA 인증방법 변경 / Google OTP 관리
+                            </a>
+                        @endif
+                    </div>
                 </div>
 
             </article>
diff --git a/routes/admin.php b/routes/admin.php
index 48d0efe..83a32e4 100644
--- a/routes/admin.php
+++ b/routes/admin.php
@@ -42,8 +42,15 @@ Route::middleware(['web'])->group(function () {
         Route::get('/me/password', [MeController::class, 'showPassword'])->name('admin.me.password.form');
         Route::post('/me/password', [MeController::class, 'updatePassword'])->name('admin.me.password.update');
 
-        Route::post('/logout', [AdminAuthController::class, 'logout'])
-            ->name('admin.logout');
+        Route::get('/security', [AdminAuthController::class, 'security'])->name('admin.security');
+
+        Route::post('/totp/start',   [AdminAuthController::class, 'totpStart'])->name('admin.totp.start');
+        Route::post('/totp/confirm', [AdminAuthController::class, 'totpConfirm'])->name('admin.totp.confirm');
+        Route::post('/totp/disable', [AdminAuthController::class, 'totpDisable'])->name('admin.totp.disable');
+        Route::post('/totp/reset',   [AdminAuthController::class, 'totpReset'])->name('admin.totp.reset'); // 재등록(새 시크릿)
+        Route::post('/totp/mode',    [AdminAuthController::class, 'totpMode'])->name('admin.totp.mode');
+
+        Route::post('/logout', [AdminAuthController::class, 'logout'])->name('admin.logout');
 
         Route::prefix('/admins')->name('admin.admins.')->group(function () {
             Route::get('/', [AdminAdminsController::class, 'index'])->name('index');