MrExcel data breach: 366K accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2017-01-22
In December 2016, the forum for the Microsoft Excel tips and solutions site Mr Excel suffered a data breach. The hack of the vBulletin forum led to the exposure of over 366k accounts along with email and IP addresses, dates of birth and salted passwords hashed with MD5. The owner of the MrExcel forum subsequently self-submitted the data to HIBP. Exposed data: dates of birth, email addresses, ip addresses, passwords, social connections, usernames, website activity. The breach dates from Dec 5, 2016; Have I Been Pwned loaded it on Jan 22, 2017.
What to do
- If you had a MrExcel 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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