Data breach
LinkedInlinkedin.com
164 611 595 accounts exposed in a breach dated 2012-05-05.
Breached2012-05-05Added to HIBP2016-05-21 UTCUpdated by HIBP2016-05-21 UTCAccounts164 611 595Domainlinkedin.com
Verified
What happened in Have I Been Pwned’s words
In May 2016, LinkedIn had 164 million email addresses and passwords exposed. Originally hacked in 2012, the data remained out of sight until being offered for sale on a dark market site 4 years later. The passwords in the breach were stored as SHA1 hashes without salt, the vast majority of which were quickly cracked in the days following the release of the data.
Exposed data as HIBP classifies it
- Email addresses
- Passwords
How HIBP qualifies it
- HIBP verified that the data came from this service.
Our report on linkedin.com
Source: Have I Been Pwned (CC BY 4.0)
Copied from HIBP 2026-11-05 03:50 UTC