MyHeritage Data Breach

What happened

In October 2017, the genealogy website MyHeritage suffered a data breach. The incident was reported 7 months later after a security researcher discovered the data and contacted MyHeritage. In total, more than 92M customer records were exposed and included email addresses and salted SHA-1 password hashes. In 2019, the data appeared listed for sale on a dark web marketplace (along with several other large breaches) and subsequently began circulating more broadly.

Exposed data

Recommended actions

• Change your MyHeritage password immediately, and update it anywhere you reused the same password.
• Enable two-factor authentication on the affected account and on your critical services (email, banking).
• Watch for targeted phishing emails referencing MyHeritage — attackers weaponise breach data quickly.
• Check whether your email address appears in this breach on haveibeenpwned.com.