LinkedIn Data Breach History

This page tracks the LinkedIn data breach history and cybersecurity incidents affecting LinkedIn (United States). BreachHistory currently indexes 8 publicly disclosed or catalogued incidents spanning 2012 through 2021, with approximately 1.2 billion records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The LinkedIn breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.

Largest LinkedIn Data Breaches

The largest indexed incidents include the 2021 data scraping — 700M records, the 2012 password breach (hashes leaked 2016), and the 2016 — LinkedIn: What initially seemed to be a theft of 6, 117.0M records, along with additional historical incidents involving exposed passwords, public databases, and large-scale data scraping. Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by LinkedIn or a regulator. Below is the list of large data breaches:

• 2021 2021 data scraping — 700M records — about 700.0M records exposed · Catalogued incident
• 2012 2012 password breach (hashes leaked 2016) — about 164.0M records exposed · Catalogued incident
• 2016 2016 — LinkedIn: What initially seemed to be a theft of 6, 117.0M records — about 117.0M records exposed · Catalogued incident
• 2012 2012 — LinkedIn: Information about a 2012 data breach has just come… — about 117.0M records exposed · Catalogued incident
• 2021 2021 — Linkedin: Hacking, 70,000,000 records — about 70.0M records exposed · Catalogued incident
• 2012 2012 — LinkedIn: Hacker 'dwdm' uploaded a file containing 6, 8.0M records — about 8.0M records exposed · Catalogued incident
• 2012 2012 LinkedIn — 6.5M passwords (scope later 117M) — about 6.5M records exposed · Catalogued incident
• 2013 2013 — LinkedIn: A breach that involved keylogging software affected… — about 2.0M records exposed · Catalogued incident

What Information Was Exposed?

Depending on the incident, exposed data may include email addresses, passwords and login credentials, phone numbers, names, physical addresses, health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

LinkedIn Data Breach 2026

At the time of this update, no LinkedIn data breach has been catalogued for 2026. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a LinkedIn data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This LinkedIn breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.