Zacks (2024) data breach: 12.0M accounts exposed
Severity: high · Patch status: no-fix-needed · Since 2025-02-12
In June 2024, the investment research company Zacks was allegedly breached, and data was later published to a popular hacking forum. This comes after a separate Zacks data breach confirmed by the organisation in 2023 with the subsequent breach disclosing millions of additional records representing a superset of data from the first incident. The 2024 breach included 12M unique email addresses along with IP and physical addresses, names, usernames, phone numbers and unsalted SHA-256 password hashes. Zacks did not respond to multiple attempts to contact them about the incident. Exposed data: email addresses, ip addresses, names, passwords, phone numbers, physical addresses, usernames. The breach dates from Jun 22, 2024; Have I Been Pwned loaded it on Feb 12, 2025.
What to do
- If you had a Zacks (2024) 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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