Crunchbase data breach: 559K accounts exposed
Severity: medium · Patch status: no-fix-needed · Since 2026-10-14
In January 2026, the private company intelligence platform Crunchbase was targeted in a ShinyHunters "pay or leak" extortion attempt. Data allegedly obtained from the company was subsequently published publicly and included 560k unique email addresses, largely belonging to leads and business contacts. Other data included names, physical addresses, phone numbers, job titles, employers and LinkedIn profiles. Crunchbase later confirmed that a threat actor had exfiltrated documents from its corporate network. Exposed data: email addresses, employers, job titles, names, phone numbers, physical addresses, social media profiles. The breach dates from Jan 22, 2026; Have I Been Pwned loaded it on Oct 14, 2026.
What to do
- If you had a Crunchbase 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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