Zacks Data Breach Puts Millions at Risk Zacks Investment Research, a well-known financial research company, has reportedly suffered another massive data breach. A hacker has claimed responsibility for stealing sensitive user information in June 2024.

A recent ransomeware attack targeted Zacks, an American investment firm, and a cybercriminal claimed to have stolen records for millions of customers.

As reported by Bleeping Computer, an underground hacking forum thread from January has been discovered which claims that Zacks has fallen victim to yet another data breach. This latest breach, the third since 2022, is said to be the largest yet – with the personal information of 12 million people being leaked online.

Zacks Investment Research has reportedly suffered a significant cyberattack in June 2024, leading to the theft of sensitive user data. According to sources, attackers gained access to Zacks' active directory as domain administrators,