Toumei data breach: 76K accounts exposed
Severity: medium · Patch status: no-fix-needed · Since 2023-10-27
In October 2023, the Japanese consultancy firm Toumei suffered a data breach. The breach exposed over 100M lines and 10GB of data including 77k unique email addresses along with names, phone numbers and physical addresses. Exposed data: email addresses, names, phone numbers, physical addresses. The breach dates from Oct 18, 2023; Have I Been Pwned loaded it on Oct 27, 2023.
What to do
- If you had a Toumei account, change its password and the password of any other account that reused it.
- Turn on multi-factor authentication wherever it is offered.
- Check whether your addresses are in this breach at https://haveibeenpwned.com.
- Expect targeted phishing that quotes the leaked details; verify any unexpected contact out of band.
Sources
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