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Breach Database / Zacks (2024)

Yes — Zacks (2024) was breached.

What happened

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.

What data was exposed

What to do right now

  1. Change your password for this service now. And change it anywhere you reused the same password — attackers try leaked passwords on other sites within hours ("credential stuffing").
  2. Turn on two-factor authentication. Even a leaked password is useless against an account protected by a second factor. Prefer an authenticator app over SMS.
  3. Be alert for smishing and SIM-swap attempts. Treat unexpected texts and "carrier" calls with suspicion; add a PIN/port-freeze with your mobile carrier.
  4. Watch for targeted phishing mail. A leaked home address makes postal and doorstep scams more convincing.
  5. Expect convincing phishing emails. Attackers use breached details to write personalized emails. Be suspicious of any message referencing this service.
  6. Check your other accounts on Have I Been Pwned. Your email address may appear in other breaches you don't know about yet.
  7. Monitor the apps you use going forward. Clearly watches the breach record for the companies behind your apps and alerts you the moment one appears.

Breach data from Have I Been Pwned. Listing here means the service appears in the public breach record — not that your personal data was affected.

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