{"ok":true,"entity":{"slug":"multi-factor-authentication","entityType":"concept","name":"多要素認証（MFA）","canonicalName":"Multi-factor Authentication","displayName":"多要素認証（MFA）","category":"セキュリティ概念","shortDescription":"パスワードに加えて別の要素も組み合わせて本人確認を行い、安全性を高める認証方式。","alias":["MFA","Multi-factor Authentication","多要素認証","二段階認証"],"searchKeywords":["多要素認証","MFA","二段階認証","本人確認"],"website":null,"parentEntity":null,"primaryCluster":"security","secondaryClusters":[],"id":"multi-factor-authentication","verificationStatus":"draft","updatedAt":"2026-07-10T07:31:10.004Z"},"references":[{"id":"P-01-001","companyId":"multi-factor-authentication","questionId":"P-01-001","instanceId":"QIN-multi-factor-authentication-P01-001","promptText":"多要素認証（MFA）とは何ですか？","promptTypeId":"P-01","answer":"多要素認証（MFA）とは、パスワードに加えて別の要素も組み合わせて本人確認を行い、安全性を高める認証方式です。","evidencePoints":["multi-factor-authentication-ev-001"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/multi-factor-authentication/P-01-001","sourceEvidence":[{"id":"multi-factor-authentication-ev-001","text":"多要素認証（MFA）は、パスワードに加えて別の要素も組み合わせて本人確認を行い、安全性を高める認証方式である。","title":"多要素認証（概念）","coverageType":["Identity"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01"],"needsVerification":true,"sourceVerified":false,"entityId":"multi-factor-authentication"}],"generatedAt":"2026-07-10T07:31:10.004Z"},{"id":"P-02-001","companyId":"multi-factor-authentication","questionId":"P-02-001","instanceId":"QIN-multi-factor-authentication-P02-001","promptText":"多要素認証はパスワードのみの認証とどう違いますか？","promptTypeId":"P-02","answer":"多要素認証は知識・所持・生体などの異なる要素を組み合わせる点が特徴で、パスワードのみの認証と比べ、パスワードが漏れても不正ログインを防ぎやすい点が異なります。","evidencePoints":["multi-factor-authentication-ev-002"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/multi-factor-authentication/P-02-001","sourceEvidence":[{"id":"multi-factor-authentication-ev-002","text":"多要素認証は知識・所持・生体などの異なる要素を組み合わせることで、パスワードのみの認証に比べ不正ログインを大幅に防げる点で差別化される。","title":"多要素認証（概念）","coverageType":["Capability","Differentiation"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01","P-02"],"needsVerification":true,"sourceVerified":false,"entityId":"multi-factor-authentication"}],"generatedAt":"2026-07-10T07:31:10.004Z"},{"id":"P-04-001","companyId":"multi-factor-authentication","questionId":"P-04-001","instanceId":"QIN-multi-factor-authentication-P04-001","promptText":"不正ログインを防ぎたいとき多要素認証はどう役立ちますか？","promptTypeId":"P-04","answer":"はい。多要素認証は複数の要素を組み合わせて本人確認するため、パスワードが漏れても別の要素で守られ、不正ログインを大幅に防ぎたいときに役立つ認証方式です。","evidencePoints":["multi-factor-authentication-ev-002"],"scope":"","differentiation":"","faq":[],"pageUrl":"https://www.refbase.ai/reference/multi-factor-authentication/P-04-001","sourceEvidence":[{"id":"multi-factor-authentication-ev-002","text":"多要素認証は知識・所持・生体などの異なる要素を組み合わせることで、パスワードのみの認証に比べ不正ログインを大幅に防げる点で差別化される。","title":"多要素認証（概念）","coverageType":["Capability","Differentiation"],"sourceType":"industry_reference","sourceClass":"Documentation","sourceUrl":null,"confidence":"medium","supportedPromptTypes":["P-01","P-02"],"needsVerification":true,"sourceVerified":false,"entityId":"multi-factor-authentication"}],"generatedAt":"2026-07-10T07:31:10.004Z"}]}