Apparently 140,000 hijacked securities accounts were bought and sold on dark websites. | 乗っ取られた証券口座が闇サイトに14万件売買されてたらしい。

証券口座の乗っ取り問題をめぐり、匿名性が高いネット空間「ダークウェブ」上の闇サイトなどに、日本の証券口座のID・パスワードといった認証情報が少なくとも約14万件掲載されていたことが、セキュリティー会社の調べで分かったそうで乗っ取られた口座の認証情報が闇サイトで売買され、さらに悪用されたとみられるそうなのですがこれは証券会社の従業員が個人情報を売っていた可能性が高そうな感じがします。私も証券口座は何もなかったのですが一応定期的に警戒しておいた方が良いかもしれませんね。

https://www.asahi.com/articles/AST5Q2BWWT5QULFA00SM.html

Regarding the issue of securities account hijacking, a security company has found that at least 140,000 pieces of authentication information, such as IDs and passwords for Japanese securities accounts, were posted on dark sites on the "dark web," a highly anonymous online space. It seems likely that the authentication information for the hijacked accounts was bought and sold on the dark web and further misused, which makes me think that there is a high possibility that employees of securities companies were selling personal information. I don't have any securities accounts myself, but it might be a good idea to be on guard regularly just in case.