みずほ証券を騙ったフィッシング詐欺に注意(2)
インターネット取引サービスにおける不正アクセスおよび不正取引への注意と対策のお願い | みずほ証券
「 【みずほ証券】不正取引対策と口座の安全性強化について 」
届きました。
1.

Return-path: <Mizuho.*kyama5*@manglin.cn>[1]
Delivery-date: Mon, 07 Jul 2025 04:34:48 +0900
Received: from [189.90.146.195][2] (helo=vm292)
Mon, 07 Jul 2025 04:34:48 +0900
Date: Sun, 6 Jul 2025 19:34:41 +0000 (UTC)
From: Mizuho <Mizuho.*kyama5*@manglin.cn>
Subject: 【みずほ証券】不正取引対策と口座の安全性強化について<!DOCTYPE HTML PUBLIC “-//W3C//DTD HTML 4.0 Transitional//EN”>
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style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>***************</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>このメールアドレスは送信専用です。</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>返信によるお問い合わせはお受けしておりません。</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>***************</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>お客様各位</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>現在、フィッシング詐欺による不正アクセスが多発しています。当社を装った偽サイトや不正メールに十分ご注意ください。</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>■
当社のセキュリティ強化対策:</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>-
ログインパスワードの変更:定期的にパスワードを変更し、口座のセキュリティを保ってください。</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>-
取引パスワードの更新:取引の安全性を確保するために、取引パスワードの更新を行ってください。</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>-
ワンタイムパスワード(OTP)の設定:オンライン取引をより安全にするため、OTPサービスの登録をお願いいたします。</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>■
詳細な対策については、こちらからご確認ください:</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’><A
style=”TEXT-DECORATION: none !important” href=”https://hu8bbs.top/******“
target=_blank>https://mnc.mizuho-sc.com/web/rmfIndexWebAction.do</A>[3]</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>また、2025年7月7日より、ログイン時に多要素認証(MFA)が必須となります。メールアドレスとOTPサービスの登録をお忘れなく。</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>■
多要素認証に関する詳細情報はこちら:</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’><A
style=”TEXT-DECORATION: none !important”
href=”https://hu8bbs.top/******“>https://www.mizuho-sc.com/service/online/loginfaq/index.html</A>[3]</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>ご対応をお願いいたします。</DIV>
<P><BR
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’> </P>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>===============================</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>みずほ証券コールセンター</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>TEL:0120-324-390</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>営業時間:平日8:00~19:00、土曜日9:00~17:00(日祝休業)</DIV>
<DIV
style=’FONT-SIZE: 14px; FONT-FAMILY: “Microsoft YaHei UI”, Tahoma; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; FONT-WEIGHT: 400; COLOR: rgb(0,0,0); FONT-STYLE: normal; ORPHANS: 2; WIDOWS: 2; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial’>===============================</DIV></BODY></HTML>
2.
Return-path: <Mizuho.*g0123xy*@qdnqn.com>[4]
Delivery-date: Mon, 07 Jul 2025 06:26:05 +0900
Received: from [177.11.171.78][5] (helo=vm140)
Mon, 07 Jul 2025 06:26:05 +0900
Date: Sun, 6 Jul 2025 21:25:51 +0000 (UTC)
From: Mizuho <Mizuho.*g0123xy*@qdnqn.com>
Subject: 【みずほ証券】不正取引対策と口座の安全性強化について<A
style=”TEXT-DECORATION: none !important” href=”https://e15y4r.top/******“
target=_blank>https://mnc.mizuho-sc.com/web/rmfIndexWebAction.do</A>[6](上記以外 1通目と同じ)
追加
3.
Return-path: <Mizuho.*ahmanr*@stkoo.com>[7]
Delivery-date: Mon, 07 Jul 2025 20:50:33 +0900
Received: from [181.59.3.12][8] (helo=vm140)
Mon, 07 Jul 2025 20:50:32 +0900
Date: Mon, 7 Jul 2025 11:50:07 +0000 (UTC)
From: Mizuho <Mizuho.*ahmanr*@stkoo.com>
Subject: 【みずほ証券】不正取引対策と口座の安全性強化について<A
style=”TEXT-DECORATION: none !important” href=”https://hokbw7.top/******“
target=_blank>https://mnc.mizuho-sc.com/web/rmfIndexWebAction.do</A>[9](上記以外 1通目と同じ)
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