LastPass warns users of partner-linked data breach in June 2026

TL;DR: LastPass told users in June 2026 that personal data was exposed in a breach involving one of its external partners, according to 9to5Mac.

LastPass told users in June 2026 that personal data was exposed in a breach involving one of its external partners, according to a report published by 9to5Mac on June 23, 2026.

9to5Mac reported that LastPass users were warned that stolen personal data was involved. The report said the incident did not occur directly inside LastPass systems, but through a third-party partner used by the company.

The source excerpt did not specify the name of the partner, the number of affected users, the countries involved, or the categories of personal data exposed. The report framed the incident as another breach notification affecting LastPass users.

Related questions

• When did LastPass notify users about the breach?
• Did the reported breach occur at LastPass or at an external partner?
• What details about affected users were disclosed in the source excerpt?