The FBI said in a statement on September 23 that the bureau is investigating hackers who claim they broke into the bureau’s systems and stole the data of thousands of current and former employees.
On Tuesday, a group called ShinyHunters claimed responsibility for the hack. The gang said they attacked the FBI in retaliation for past statements by the FBI accusing it of exaggerating.
One of the hackers shared a sample of allegedly stolen FBI documents with Bloomberg. The documents outline FBI employee health reports outlining medical conditions and prior mental health issues for designated individuals. Bloomberg News could not independently verify these claims.
The FBI said in an emailed statement that it was “aware of the allegations regarding the impact of unauthorized activity.” FBIjobs.gova bureau career website, is currently investigating. ” Fbijobs.gov returned an error message on Sept. 23, saying the site was “temporarily unavailable.” A spokesman for the bureau declined further comment.
The FBI sent an email to everyone Wednesday morning saying it was investigating the hacking allegations, according to a person familiar with the matter. The person said the email did not confirm a cybersecurity breach but urged employees to take steps to protect themselves while the investigation continues. The person asked not to be identified discussing internal bureau communications.
ShinyHunters has previously been linked to a number of high-profile breaches, including attacks against Salesforce, Jaguar Land Rover, and AT&T. The group has been active since 2019 and is one of the most prolific data theft and extortion gangs in the world, according to cybersecurity firm Huntress.
As the nation’s premier law enforcement agency, the FBI is an attractive target for both criminal hackers and foreign cyber spies. Like other federal agencies, it has suffered breaches in recent years.
This spring, the FBI concluded that the breach of a network used to manage wiretaps and other surveillance efforts was characterized as a “major incident,” indicating that the severity of the intrusion has prompted the agency to launch a criminal investigation and take action to strengthen cybersecurity.
An investigation into unusual activity on the compromised network was launched on February 17, according to a Justice Department notice to Congress reviewed by Bloomberg News. The affected systems contained sensitive law enforcement information, including electronic surveillance data and personally identifiable information of subjects of the bureau’s investigation, the notice said.
FBI leaders warned staff after hackers breached AT&T Corp.’s systems in 2024 and believed they had stolen months of agents’ logs of calls and text messages, setting off a race within the bureau to protect the identities of confidential informants, Bloomberg reported in 2025. FBI officials told agents across the country that details about their use on telecom carriers’ networks are among billions of records believed to have been stolen in the breach.
photo: The FBI seal is displayed on a computer screen at FBI headquarters in Washington. Photographer: Al Drago/Bloomberg
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