{"id":17472,"date":"2026-04-01T15:56:57","date_gmt":"2026-04-01T12:56:57","guid":{"rendered":"https:\/\/smspva.com\/blog\/how-protect-accounts-sms-based-two-factor-authentication-ja\/"},"modified":"2026-04-01T15:56:57","modified_gmt":"2026-04-01T12:56:57","slug":"how-protect-accounts-sms-based-two-factor-authentication-ja","status":"publish","type":"post","link":"https:\/\/smspva.com\/blog\/ja\/how-protect-accounts-sms-based-two-factor-authentication-ja\/","title":{"rendered":"SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n<style>  :not(:root) { }  :root {    color-scheme: light dark;    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;  }  .container { max-width: 900px; margin: 0 auto; padding: 28px; }  .badge { display: inline-block; padding: 6px 10px; border-radius: 999px; background: #eef2ff; color: #3730a3; font-size: 12px; margin-right: 8px; }  header h1 { font-size: 28px; line-height: 1.25; margin: 0 0 12px; }  .kicker { margin: 12px 0 20px; }  article { line-height: 1.7; color: #1f2937; }  h2 { font-size: 22px; margin-top: 28px; }  h3 { font-size: 18px; margin-top: 20px; }  p { margin: 12px 0; }  ul, ol { margin: 10px 0 10px 22px; }  table { width: 100%; border-collapse: collapse; margin: 16px 0; }  th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }  .cta { display: flex; gap: 12px; margin: 22px 0; }  .btn { padding: 12px 16px; border-radius: 6px; text-decoration: none; color: #fff; background: #2563eb; }  .btn.secondary { background: #64748b; }  .tl;dr { background: #f8fafc; border-left: 4px solid #3b82f6; padding: 12px 14px; margin: 12px 0; }<\/style><article class='container' itemscope itemtype='https:\/\/schema.org\/TechArticle'>  <header><img src='\/storage\/articles\/how-protect-accounts-sms-based-two-factor-authentication.png' alt='\u5b89\u5168\u306a\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u305f\u3081\u306eSMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u30b3\u30fc\u30c9\u3092\u8868\u793a\u3057\u3066\u3044\u308b\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3'>    <span class='kicker'>      <span class='badge'>\u30b0\u30ed\u30fc\u30d0\u30eb<\/span>      <span class='badge'>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c<\/span>      <span class='badge'>OTP<\/span>    <\/span>    <h1>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5<\/h1>  <\/header>  <p>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u7528\u3044\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5\u306f\u3001SMS\u30b3\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u4eba\u306b\u3068\u3063\u3066\u5b9f\u7528\u7684\u306a\u30ac\u30a4\u30c9\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3068\u9577\u6240\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306a\u3069\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306e\u3088\u308a\u5e83\u3044\u6982\u5ff5\u3092\u77e5\u308b\u306b\u306f\u3001<a href='https:\/\/en.wikipedia.org\/wiki\/Two-factor_authentication' target='_blank' rel=\"noopener\">\u4e8c\u8981\u7d20\u8a8d\u8a3c<\/a>\u3092\u3054\u89a7\u306b\u306a\u308b\u304b\u3001<a href='https:\/\/security.google.com\/' target='_blank' rel=\"noopener\">Google\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30bd\u30fc\u30b9<\/a>\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/p>  <p>\u591a\u304f\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001SMS\u30d9\u30fc\u30b9\u306e\u691c\u8a3c\u304c\u3042\u306a\u305f\u3068\u653b\u6483\u8005\u306e\u9593\u306b\u6709\u7528\u306a\u9632\u5fa1\u306e\u969c\u58c1\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u306f\u8a2d\u8a08\u4e0a\u5b8c\u74a7\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5236\u9650\u3092\u7406\u89e3\u3057\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u8ffd\u52a0\u306e\u4fdd\u8b77\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4fbf\u5229\u306a\u8a8d\u8a3c\u30d5\u30ed\u30fc\u3092\u7dad\u6301\u3057\u3064\u3064\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5927\u5e45\u306b\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>  <section class='tl;dr'>    <strong>TL;DR<\/strong>    <ul>      <li>SMS\u30d9\u30fc\u30b9\u306e2FA\u306f\u4e8c\u91cd\u306e\u969c\u58c1\u3092\u8ffd\u52a0\u3057\u307e\u3059\u304c\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30bd\u30fc\u30b7\u30e3\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306b\u306f\u8106\u5f31\u3067\u3059\u3002<\/li>      <li>PIN\u3092\u8a2d\u5b9a\u3057\u305f\u5f37\u529b\u306aSIM\u3092\u4f7f\u7528\u3057\u3001\u643a\u5e2f\u3092\u5b89\u5168\u306b\u4fdd\u3061\u3001\u53ef\u80fd\u306a\u5834\u5408\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u8a8d\u8a3c\u65b9\u6cd5\u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>      <li>\u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08TOTP\uff09\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u9375\uff08FIDO2\uff09\u3092\u9078\u597d\u3057\u3066\u3001\u3088\u308a\u5f37\u529b\u306a\u4fdd\u8b77\u3092\u5f97\u308b\u3068\u3068\u3082\u306b\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u3092\u5b89\u5168\u306a\u5834\u6240\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>      <li>\u5e38\u306b\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3001\u53ef\u80fd\u306a\u5834\u5408\u306f\u30a2\u30ab\u30a6\u30f3\u30c8\u6d3b\u52d5\u306e\u901a\u77e5\u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>    <\/ul>  <\/section>  <h2>\u306a\u305cSMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u4f7f\u3046\u306e\u304b<\/h2>  <p>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u5f8c\u306b\u7b2c\u4e8c\u306e\u9632\u5fa1\u5c64\u3092\u8ffd\u52a0\u3059\u308b\u3001\u99b4\u67d3\u307f\u6df1\u304f\u8fc5\u901f\u306a\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3067\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u304a\u308a\u3001\u8ffd\u52a0\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3084\u30a2\u30d7\u30ea\u3092\u5fc5\u8981\u3068\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u500b\u4eba\u304a\u3088\u3073\u5c0f\u898f\u6a21\u30d3\u30b8\u30cd\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5b9f\u7528\u7684\u306a\u51fa\u767a\u70b9\u3067\u3059\u3002\u3088\u308a\u5e83\u3044\u6982\u5ff5\u306b\u3064\u3044\u3066\u306f\u3001<a href='https:\/\/en.wikipedia.org\/wiki\/Two-factor_authentication' target='_blank' rel=\"noopener\">Wikipedia\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c<\/a>\u3092\u3054\u89a7\u3044\u305f\u3060\u304f\u304b\u3001<a href='https:\/\/security.google.com\/' target='_blank' rel=\"noopener\">Google\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30bd\u30fc\u30b9<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>  <h2>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u5b9f\u88c5\u3057\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5<\/h2>  <ol>    <li><strong>\u3059\u3079\u3066\u306e\u91cd\u8981\u306a\u30b5\u30fc\u30d3\u30b9\u3067SMS\u30d9\u30fc\u30b9\u306e2FA\u3092\u6709\u52b9\u306b\u3059\u308b\u3002<\/strong> \u307e\u305a\u306f\u30e1\u30fc\u30eb\u3001\u9280\u884c\u3001\u30bd\u30fc\u30b7\u30e3\u30eb\u3001\u30af\u30e9\u30a6\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u306a\u3069\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u59cb\u3081\u307e\u3059\u3002\u5404\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u307e\u305f\u306f\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u8a2d\u5b9a\u306b\u3053\u306e\u624b\u9806\u304c\u901a\u5e38\u8868\u793a\u3055\u308c\u307e\u3059\u3002<a href='https:\/\/smspva.com\/service\/virtual-phone-number' target='_blank' rel=\"noopener\">\u4eee\u60f3\u96fb\u8a71\u756a\u53f7\u30b5\u30fc\u30d3\u30b9<\/a>\u306e\u30da\u30fc\u30b8\u3067\u691c\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a73\u7d30\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/li>    <li><strong>SIM\u30ab\u30fc\u30c9\u3068\u96fb\u8a71\u3092\u4fdd\u8b77\u3059\u308b\u3002<\/strong> \u5f37\u529b\u306a\u30c7\u30d0\u30a4\u30b9\u30ed\u30c3\u30af\uff08PIN\u3001\u30d1\u30b9\u30b3\u30fc\u30c9\u3001\u307e\u305f\u306f\u751f\u4f53\u8a8d\u8a3c\uff09\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u3001\u30ad\u30e3\u30ea\u30a2\u30a2\u30ab\u30a6\u30f3\u30c8\u3067SIM PIN\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u4e0d\u6b63\u306aSIM\u30b9\u30ef\u30c3\u30d7\u3092\u9632\u304e\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001SIM\u30b9\u30ef\u30c3\u30d7\u306b\u3088\u308b\u30b3\u30fc\u30c9\u306e\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u30ea\u30b9\u30af\u304c\u8efd\u6e1b\u3055\u308c\u307e\u3059\u3002<\/li>    <li><strong>\u3042\u306a\u305f\u306e\u756a\u53f7\u3092\u81ea\u5206\u306e\u624b\u5143\u3067\u7ba1\u7406\u3059\u308b\u3002<\/strong> \u5b9a\u671f\u7684\u306b\u756a\u53f7\u3092\u8ab0\u304c\u4f7f\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3057\u3001\u91cd\u8981\u306a\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u306f\u5225\u306e\u9023\u7d61\u65b9\u6cd5\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u691c\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u5897\u3084\u3059\u306b\u306f\u3001<a href='https:\/\/www.whatsapp.com\/' target='_blank' rel=\"noopener\">WhatsApp<\/a> \u3084\u691c\u8a3c\u30b3\u30fc\u30c9\u3092\u6697\u53f7\u5316\u30c1\u30e3\u30cd\u30eb\u3067\u63d0\u4f9b\u3059\u308b\u5b89\u5168\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306a\u3069\u3001\u4ed6\u306e\u30c1\u30e3\u30cd\u30eb\u3082\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>    <li><strong>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u614e\u91cd\u306b\u4f7f\u7528\u3059\u308b\u3002<\/strong> \u591a\u304f\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u3084\u4ee3\u66ff\u306e2FA\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u3092\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u5b89\u5168\u306a\u5834\u6240\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002SMS\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u65b9\u6cd5\u3067\u9577\u3044\u624b\u9806\u3092\u8981\u3055\u305a\u306b\u5fa9\u65e7\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>    <li><strong>\u5b9a\u671f\u7684\u306b\u76e3\u67fb\u3068\u66f4\u65b0\u3092\u884c\u3046\u3002<\/strong> \u30a2\u30ab\u30a6\u30f3\u30c8\u5168\u4f53\u306e2FA\u8a2d\u5b9a\u3092\u5b9a\u671f\u7684\u306b\u898b\u76f4\u3057\u307e\u3059\u3002\u53e4\u3044\u96fb\u8a71\u756a\u53f7\u3092\u524a\u9664\u3057\u3001\u3082\u3046\u4f7f\u308f\u306a\u304f\u306a\u3063\u305f\u30c7\u30d0\u30a4\u30b9\u3092\u53d6\u308a\u6d88\u3057\u307e\u3059\u3002Google \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306a\u3069\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u3092\u4f7f\u3063\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>    <li><strong>\u53ef\u80fd\u306a\u5834\u5408\u306b\u306f\u3088\u308a\u5f37\u529b\u306a\u4ee3\u66ff\u624b\u6bb5\u3092\u691c\u8a0e\u3059\u308b\u3002<\/strong> \u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08TOTP\uff09\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ad\u30fc\uff08FIDO2\uff09\u306f\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u5bfe\u3057\u3066\u4e00\u822c\u7684\u306b\u3088\u308a\u5f37\u529b\u306a\u4fdd\u8b77\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5909\u66f4\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001SMS\u3092\u4e3b\u8981\u306a\u65b9\u6cd5\u3068\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u3057\u3066\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>  <\/ol>  <h2>\u8868: 2FA\u65b9\u6cd5\u306e\u6bd4\u8f03<\/h2>  <table>    <thead>      <tr>        <th>\u65b9\u6cd5<\/th>        <th>\u5229\u70b9<\/th>        <th>\u6b20\u70b9<\/th>        <th>\u6700\u9069\u306a\u4f7f\u7528\u4f8b<\/th>      <\/tr>    <\/thead>    <tbody>      <tr>        <td>SMS\u30d9\u30fc\u30b9\u306e2FA<\/td>        <td>\u4f7f\u3044\u3084\u3059\u3044\u3001\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b<\/td>        <td>SIM\u30b9\u30ef\u30c3\u30d7\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306b\u8106\u5f31; \u30ad\u30e3\u30ea\u30a2\u4f9d\u5b58<\/td>        <td>\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u306e\u7b2c\u4e00\u7dda\u306e\u4fdd\u8b77<\/td>      <\/tr>      <tr>        <td>\u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08TOTP\uff09<\/td>        <td>\u5f37\u529b\u3001\u30aa\u30d5\u30e9\u30a4\u30f3\u30b3\u30fc\u30c9; SIM\u4e0d\u8981<\/td>        <td>\u30b9\u30de\u30db\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5fc5\u8981; \u76d7\u96e3\u6642\u306b\u7d1b\u5931\u3059\u308b\u53ef\u80fd\u6027<\/td>        <td>\u3088\u308a\u826f\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u305f\u3081\u306e\u4e3b\u8981\u306a\u65b9\u6cd5<\/td>      <\/tr>      <tr>        <td>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ad\u30fc\uff08FIDO2\uff09<\/td>        <td>\u6700\u9ad8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3; \u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u8010\u6027<\/td>        <td>\u30b3\u30b9\u30c8; \u4e92\u63db\u6027\u306e\u3042\u308b\u30c7\u30d0\u30a4\u30b9\u304c\u5fc5\u8981<\/td>        <td>\u91cd\u8981\u306a\u30a2\u30ab\u30a6\u30f3\u30c8\u3068\u9ad8\u30ea\u30b9\u30af\u30a2\u30af\u30bb\u30b9<\/td>      <\/tr>    <\/tbody>  <\/table>  <h2>\u5b89\u5168\u304b\u3064\u5408\u6cd5\u7684\u306a\u5229\u7528<\/h2>  <p>\u30ed\u30fc\u30ab\u30eb\u306e\u6cd5\u4ee4\u3068\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306e\u5229\u7528\u898f\u7d04\u3092\u5c0a\u91cd\u3059\u308b\u5f62\u3067\u5e38\u306b2FA\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a8d\u8a3c\u30b3\u30fc\u30c9\u3092\u4ed6\u4eba\u3068\u5171\u6709\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001\u30b3\u30fc\u30c9\u3092\u5b89\u5168\u3067\u306a\u3044\u5834\u6240\u306b\u4fdd\u7ba1\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u95a2\u3059\u308b\u516c\u5f0f\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u60c5\u5831\u6e90\u3067\u3042\u308bFBI\u304a\u3088\u3073CISA\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>  <h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>  <div id='faq' aria-label='Frequently Asked Questions'>    <h3>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>    <p>SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\uff082FA\uff09\u3067\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066\u767b\u9332\u6e08\u307f\u306e\u96fb\u8a71\u756a\u53f7\u306bSMS\u3067\u9001\u4fe1\u3055\u308c\u308b\u30ef\u30f3\u30bf\u30a4\u30e0\u30b3\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b5\u30a4\u30f3\u30a4\u30f3\u6642\u306b\u7b2c\u4e8c\u306e\u691c\u8a3c\u30b9\u30c6\u30c3\u30d7\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002<\/p>    <h3>SMS\u30d9\u30fc\u30b9\u306e2FA\u306f\u5b89\u5168\u3067\u3059\u304b\uff1f<\/h3>    <p>SMS 2FA\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u307f\u3088\u308a\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u304c\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3001\u756a\u53f7\u306e\u4e57\u3063\u53d6\u308a\u306b\u306f\u8106\u5f31\u3067\u3059\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070SMS\u3068\u8a8d\u8a3c\u30a2\u30d7\u30ea\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u9375\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>    <h3>SIM\u30b9\u30ef\u30c3\u30d7\u306e\u30ea\u30b9\u30af\u3092\u3069\u3046\u6e1b\u3089\u305b\u307e\u3059\u304b\uff1f<\/h3>    <p>\u30ad\u30e3\u30ea\u30a2\u306eSIM PIN\u3092\u8a2d\u5b9a\u3057\u3001SIM\u5909\u66f4\u306e\u901a\u77e5\u3092\u6709\u52b9\u306b\u3057\u3001\u4e0d\u5be9\u306a\u30b5\u30a4\u30c8\u3067\u306e\u8a8d\u8a3c\u306b\u81ea\u5206\u306e\u756a\u53f7\u3092\u4f7f\u7528\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u91cd\u8981\u306a\u30b5\u30fc\u30d3\u30b9\u306f\u30a2\u30d7\u30ea\u30d9\u30fc\u30b9\u306e2FA\u3078\u79fb\u884c\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>    <h3>\u30b5\u30fc\u30d3\u30b9\u3067SMS\u30d9\u30fc\u30b9\u306e2FA\u3092\u6709\u52b9\u306b\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>    <p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u307e\u305f\u306f\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u8a2d\u5b9a\u306b\u79fb\u52d5\u3057\u30012FA\u307e\u305f\u306f\u30ed\u30b0\u30a4\u30f3\u691c\u8a3c\u3092\u9078\u629e\u3057\u3001SMS\u914d\u4fe1\u3092\u9078\u629e\u3057\u3066\u96fb\u8a71\u756a\u53f7\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u554f\u984c\u304c\u3042\u308b\u5834\u5408\u306f\u30b5\u30fc\u30d3\u30b9\u306e\u30d8\u30eb\u30d7\u30bb\u30f3\u30bf\u30fc\u3092\u78ba\u8a8d\u3059\u308b\u304b\u3001\u691c\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u5b66\u3076\u5185\u90e8\u30b5\u30dd\u30fc\u30c8\u30ea\u30f3\u30af\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>    <h3>\u8a8d\u8a3c\u30a2\u30d7\u30ea\u306b\u5207\u308a\u66ff\u3048\u308b\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>    <p>\u306f\u3044\u3001\u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08TOTP\uff09\u306f\u591a\u304f\u306e\u5834\u5408\u3001SMS\u3088\u308a\u3082\u5b89\u5168\u3067\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u4e0a\u3067\u30b3\u30fc\u30c9\u3092\u751f\u6210\u3057\u3001SIM\u30b9\u30ef\u30c3\u30d7\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306b\u304f\u3044\u3067\u3059\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u4e3b\u8981\u306a2FA\u65b9\u6cd5\u3068\u3057\u3066\u6709\u52b9\u5316\u3057\u3001SMS\u3092\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3068\u3057\u3066\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>    <h3>\u30b9\u30de\u30db\u3092\u306a\u304f\u3057\u305f\u3089\u3069\u3046\u306a\u308a\u307e\u3059\u304b\uff1f<\/h3>    <p>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u307e\u305f\u306f\u4ee3\u66ff\u306e\u691c\u8a3c\u65b9\u6cd5\u3092\u4f7f\u3063\u3066\u518d\u5ea6\u30a2\u30af\u30bb\u30b9\u3092\u56de\u5fa9\u3057\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u3092\u5b89\u5168\u306b\u4fdd\u7ba1\u3057\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u30b5\u30fc\u30d3\u30b9\u306e\u30b5\u30dd\u30fc\u30c8\u306b\u9023\u7d61\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u822c\u7684\u306a\u30ac\u30a4\u30c0\u30f3\u30b9\u3068\u3057\u3066\u3001<a href='https:\/\/security.google.com\/' target='_blank' rel=\"noopener\">Google\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30bd\u30fc\u30b9<\/a>\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>  <\/div>  <div class='cta' aria-label='Call to Action'>    <a href='https:\/\/smspva.com\/service\/virtual-phone-number' class='btn' rel='noopener'>\u4eee\u60f3\u756a\u53f7\u3092\u691c\u7d22<\/a>    <a href='https:\/\/smspva.com\/free-phone-numbers\/' class='btn secondary' rel='noopener'>\u7121\u6599\u306e\u96fb\u8a71\u756a\u53f7<\/a>  <\/div>  <\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u30b0\u30ed\u30fc\u30d0\u30eb SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c OTP SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5 SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u7528\u3044\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5\u306f\u3001SMS\u30b3\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u4eba\u306b\u3068\u3063\u3066\u5b9f\u7528\u7684\u306a\u30ac\u30a4\u30c9\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3068\u9577\u6240\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u306a\u3069\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306e\u3088\u308a\u5e83\u3044\u6982\u5ff5\u3092\u77e5\u308b\u306b\u306f\u3001\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u3054\u89a7\u306b\u306a\u308b\u304b\u3001Google\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30bd\u30fc\u30b9\u3092\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002 \u591a\u304f\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u3001SMS\u30d9\u30fc\u30b9\u306e\u691c\u8a3c\u304c\u3042\u306a\u305f\u3068\u653b\u6483\u8005\u306e\u9593\u306b\u6709\u7528\u306a\u9632\u5fa1\u306e\u969c\u58c1\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u306f\u8a2d\u8a08\u4e0a\u5b8c\u74a7\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5236\u9650\u3092\u7406\u89e3\u3057\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u8ffd\u52a0\u306e\u4fdd\u8b77\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u4fbf\u5229\u306a\u8a8d\u8a3c\u30d5\u30ed\u30fc\u3092\u7dad\u6301\u3057\u3064\u3064\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5927\u5e45\u306b\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 TL;DR SMS\u30d9\u30fc\u30b9\u306e2FA\u306f\u4e8c\u91cd\u306e\u969c\u58c1\u3092\u8ffd\u52a0\u3057\u307e\u3059\u304c\u3001SIM\u30b9\u30ef\u30c3\u30d7\u3084\u30bd\u30fc\u30b7\u30e3\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306b\u306f\u8106\u5f31\u3067\u3059\u3002 PIN\u3092\u8a2d\u5b9a\u3057\u305f\u5f37\u529b\u306aSIM\u3092\u4f7f\u7528\u3057\u3001\u643a\u5e2f\u3092\u5b89\u5168\u306b\u4fdd\u3061\u3001\u53ef\u80fd\u306a\u5834\u5408\u306f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u8a8d\u8a3c\u65b9\u6cd5\u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u8a8d\u8a3c\u30a2\u30d7\u30ea\uff08TOTP\uff09\u3084\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u9375\uff08FIDO2\uff09\u3092\u9078\u597d\u3057\u3066\u3001\u3088\u308a\u5f37\u529b\u306a\u4fdd\u8b77\u3092\u5f97\u308b\u3068\u3068\u3082\u306b\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u3092\u5b89\u5168\u306a\u5834\u6240\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u5e38\u306b\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3057\u3001\u53ef\u80fd\u306a\u5834\u5408\u306f\u30a2\u30ab\u30a6\u30f3\u30c8\u6d3b\u52d5\u306e\u901a\u77e5\u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u306a\u305cSMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u4f7f\u3046\u306e\u304b SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u5f8c\u306b\u7b2c\u4e8c\u306e\u9632\u5fa1\u5c64\u3092\u8ffd\u52a0\u3059\u308b\u3001\u99b4\u67d3\u307f\u6df1\u304f\u8fc5\u901f\u306a\u65b9\u6cd5\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u3067\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u304a\u308a\u3001\u8ffd\u52a0\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3084\u30a2\u30d7\u30ea\u3092\u5fc5\u8981\u3068\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u500b\u4eba\u304a\u3088\u3073\u5c0f\u898f\u6a21\u30d3\u30b8\u30cd\u30b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5b9f\u7528\u7684\u306a\u51fa\u767a\u70b9\u3067\u3059\u3002\u3088\u308a\u5e83\u3044\u6982\u5ff5\u306b\u3064\u3044\u3066\u306f\u3001Wikipedia\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u3054\u89a7\u3044\u305f\u3060\u304f\u304b\u3001Google\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30bd\u30fc\u30b9\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002 SMS\u30d9\u30fc\u30b9\u306e\u4e8c\u8981\u7d20\u8a8d\u8a3c\u3092\u5b9f\u88c5\u3057\u3066\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5 \u3059\u3079\u3066\u306e\u91cd\u8981\u306a\u30b5\u30fc\u30d3\u30b9\u3067SMS\u30d9\u30fc\u30b9\u306e2FA\u3092\u6709\u52b9\u306b\u3059\u308b\u3002 \u307e\u305a\u306f\u30e1\u30fc\u30eb\u3001\u9280\u884c\u3001\u30bd\u30fc\u30b7\u30e3\u30eb\u3001\u30af\u30e9\u30a6\u30c9\u30b9\u30c8\u30ec\u30fc\u30b8\u306a\u3069\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u59cb\u3081\u307e\u3059\u3002\u5404\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u307e\u305f\u306f\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u8a2d\u5b9a\u306b\u3053\u306e\u624b\u9806\u304c\u901a\u5e38\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u4eee\u60f3\u96fb\u8a71\u756a\u53f7\u30b5\u30fc\u30d3\u30b9\u306e\u30da\u30fc\u30b8\u3067\u691c\u8a3c\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a73\u7d30\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 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