Tesco data breach: 2239 accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2014-02-13
In February 2014, over 2,000 Tesco accounts with usernames, passwords and loyalty card balances appeared on Pastebin. Whilst the source of the breach is not clear, many confirmed the credentials were valid for Tesco and indeed they have a history of poor online security. Exposed data: email addresses, passwords, reward program balances. The breach dates from Feb 12, 2014; Have I Been Pwned loaded it on Feb 13, 2014.
What to do
- If you had a Tesco 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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