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Yahoo!をSMS認証に変更してセキュリティを高める

<p>Yahoo&excl;のログインはID(もしくはメールアドレス)とパスワードでログインしていましたが、IDやパスワードが漏れる可能性もないとはいえません。Yahoo&excl;ではパスワードを廃止して、携帯電話にSMSを送信してその番号を入力する方法に変えることを勧めています。<&sol;p>&NewLine;<p>下はiPhoneでYahoo&excl;アプリの設定画面です<br &sol;>&NewLine;[セキュリティ強化のために、SMS認証に切り替えましょう]をクリック<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;f0d498b5aed7ca0595b35f04cf081daf&period;jpg"><img data-attachment-id&equals;"8880" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;8879&sol;20180926&lowbar;182039&lowbar;yahoo&percnt;e3&percnt;82&percnt;92sms&percnt;e8&percnt;aa&percnt;8d&percnt;e8&percnt;a8&percnt;bc&percnt;e3&percnt;81&percnt;ab&percnt;e5&percnt;88&percnt;87&percnt;e3&percnt;82&percnt;8a&percnt;e6&percnt;9b&percnt;bf&percnt;e3&percnt;81&percnt;88&percnt;e3&percnt;82&percnt;8b" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;f0d498b5aed7ca0595b35f04cf081daf&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"185&comma;400" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"20180926&lowbar;182039&lowbar;YahooをSMS認証に切り替える" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;f0d498b5aed7ca0595b35f04cf081daf&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;f0d498b5aed7ca0595b35f04cf081daf&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-8880" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;f0d498b5aed7ca0595b35f04cf081daf-185x400&period;jpg" alt&equals;"" width&equals;"185" height&equals;"400" &sol;><&sol;a><&sol;p>&NewLine;<p>使っている携帯電話番号を入力して、[次へ]をクリック<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;270fe5a11ade5c036b467781b4bd61a2&period;jpg"><img data-attachment-id&equals;"8881" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;8879&sol;20180926&lowbar;182053&lowbar;yahoo&percnt;e3&percnt;82&percnt;92sms&percnt;e8&percnt;aa&percnt;8d&percnt;e8&percnt;a8&percnt;bc&percnt;e3&percnt;81&percnt;ab&percnt;e5&percnt;88&percnt;87&percnt;e3&percnt;82&percnt;8a&percnt;e6&percnt;9b&percnt;bf&percnt;e3&percnt;81&percnt;88&percnt;e3&percnt;82&percnt;8b" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;270fe5a11ade5c036b467781b4bd61a2&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"185&comma;400" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"20180926&lowbar;182053&lowbar;YahooをSMS認証に切り替える" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;270fe5a11ade5c036b467781b4bd61a2&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;270fe5a11ade5c036b467781b4bd61a2&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-8881" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;270fe5a11ade5c036b467781b4bd61a2-185x400&period;jpg" alt&equals;"" width&equals;"185" height&equals;"400" &sol;><&sol;a><&sol;p>&NewLine;<p>携帯電話に6桁の数字がメッセージで送信され、確認コードを入力して[設定する]をクリック<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;011c7e2e7c9b0b81c7e6f0bef061512f&period;jpg"><img data-attachment-id&equals;"8882" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;8879&sol;20180926&lowbar;182109&lowbar;yahoo&percnt;e3&percnt;82&percnt;92sms&percnt;e8&percnt;aa&percnt;8d&percnt;e8&percnt;a8&percnt;bc&percnt;e3&percnt;81&percnt;ab&percnt;e5&percnt;88&percnt;87&percnt;e3&percnt;82&percnt;8a&percnt;e6&percnt;9b&percnt;bf&percnt;e3&percnt;81&percnt;88&percnt;e3&percnt;82&percnt;8b" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;011c7e2e7c9b0b81c7e6f0bef061512f&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"185&comma;400" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"20180926&lowbar;182109&lowbar;YahooをSMS認証に切り替える" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;011c7e2e7c9b0b81c7e6f0bef061512f&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;011c7e2e7c9b0b81c7e6f0bef061512f&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-8882" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;011c7e2e7c9b0b81c7e6f0bef061512f-185x400&period;jpg" alt&equals;"" width&equals;"185" height&equals;"400" &sol;><&sol;a><&sol;p>&NewLine;<p>以上で設定が完了し、パスワードは使えなくなります<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;3b46117a531782e7c8686dfa9c9b70a4&period;jpg"><img data-attachment-id&equals;"8883" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;8879&sol;20180926&lowbar;182141&lowbar;yahoo&percnt;e3&percnt;82&percnt;92sms&percnt;e8&percnt;aa&percnt;8d&percnt;e8&percnt;a8&percnt;bc&percnt;e3&percnt;81&percnt;ab&percnt;e5&percnt;88&percnt;87&percnt;e3&percnt;82&percnt;8a&percnt;e6&percnt;9b&percnt;bf&percnt;e3&percnt;81&percnt;88&percnt;e3&percnt;82&percnt;8b" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;3b46117a531782e7c8686dfa9c9b70a4&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"185&comma;400" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"20180926&lowbar;182141&lowbar;YahooをSMS認証に切り替える" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;3b46117a531782e7c8686dfa9c9b70a4&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;3b46117a531782e7c8686dfa9c9b70a4&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-8883" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;3b46117a531782e7c8686dfa9c9b70a4-185x400&period;jpg" alt&equals;"" width&equals;"185" height&equals;"400" &sol;><&sol;a><&sol;p>&NewLine;<p>設定画面に戻ると、確認コードを再度入力<br &sol;>&NewLine;>[ログイン]してください<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;5d38ef2e966532e22f05a6152bc15e36&period;jpg"><img data-attachment-id&equals;"8884" data-permalink&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;archives&sol;8879&sol;20180926&lowbar;182255&lowbar;yahoo&percnt;e3&percnt;82&percnt;92sms&percnt;e8&percnt;aa&percnt;8d&percnt;e8&percnt;a8&percnt;bc&percnt;e3&percnt;81&percnt;ab&percnt;e5&percnt;88&percnt;87&percnt;e3&percnt;82&percnt;8a&percnt;e6&percnt;9b&percnt;bf&percnt;e3&percnt;81&percnt;88&percnt;e3&percnt;82&percnt;8b" data-orig-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;5d38ef2e966532e22f05a6152bc15e36&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-orig-size&equals;"185&comma;400" data-comments-opened&equals;"1" data-image-meta&equals;"&lbrace;&quot&semi;aperture&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;credit&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;camera&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;caption&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;created&lowbar;timestamp&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;copyright&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;focal&lowbar;length&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;iso&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;shutter&lowbar;speed&quot&semi;&colon;&quot&semi;0&quot&semi;&comma;&quot&semi;title&quot&semi;&colon;&quot&semi;&quot&semi;&comma;&quot&semi;orientation&quot&semi;&colon;&quot&semi;0&quot&semi;&rcub;" data-image-title&equals;"20180926&lowbar;182255&lowbar;YahooをSMS認証に切り替える" data-image-description&equals;"" data-image-caption&equals;"" data-medium-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;5d38ef2e966532e22f05a6152bc15e36&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" data-large-file&equals;"https&colon;&sol;&sol;i0&period;wp&period;com&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;5d38ef2e966532e22f05a6152bc15e36&period;jpg&quest;fit&equals;185&percnt;2C400&amp&semi;ssl&equals;1" class&equals;"alignnone size-medium wp-image-8884" src&equals;"https&colon;&sol;&sol;bacque&period;biz&sol;wp-content&sol;uploads&sol;2018&sol;09&sol;5d38ef2e966532e22f05a6152bc15e36-185x400&period;jpg" alt&equals;"" width&equals;"185" height&equals;"400" &sol;><&sol;a><&sol;p>&NewLine;

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