ACCC has received reports of spam emails titled “[ACCC] University Mailbox Quota Exceeded!”, ”ご注意！！OFFICEのプロダクトキーが不正コピーされています (Warning!! Your Office product key has been illegally copied)”, ”つくばウェブメールのアップグレード / Upgrade Your Tsukuba WebMail, etc. Please ignore them if you receive them.