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Zacks

Disclosed Jun 10, 20233 years ago8,929,503 accountsUnverified

In December 2022, the investment research company Zacks announced a data breach . The following month, reports emerged of the incident impacting 820k customers . However, in June 2023, a corpus of data with almost 9M Zacks customers appeared before being broadly circulated on a popular hacking forum. The most recent data was dated May 2020 and included names, usernames, email and physical addresses, phone numbers and passwords stored as unsalted SHA-256 hashes. On disclosure of the larger breach, Zacks advised that in addition to their original report "the unauthorised third parties also gaine

What is known

People affected8,929,503 (accounts in the leaked data, per Have I Been Pwned)
DisclosedJun 10, 2023
HappenedMay 10, 2020
AttackHacking
Data exposedEmails, Names, Passwords, Phone numbers, Addresses
SectorTech
StatusUnverified: not yet confirmed by an official notice, a filing or the organization
Check your emailHave I Been Pwned

Sources

Source
Have I Been Pwned: Zackshaveibeenpwned.com · Aggregator

Notices filed

WhereFiledPeople
Have I Been Pwnedaccounts in the dataJun 10, 20238,929,503

Other breaches at Zacks

BreachAffected
Hacker leaks data of 12 million Zacks accountsFeb 12, 20251 year agoHackingUnverified12Macct
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (Have I Been Pwned). Record counts are as reported. Not legal advice.

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