On 30 September 2026, law enforcement took control of KillSec’s leak site, securing at least 110 terabytes of data against further unauthorised access. The cybercrime group used the site to threaten organisations with the publication of stolen files unless they paid a ransom.
The action was part of Operation KillSwitch, an international investigation led by German authorities into around 1 000 suspected attacks worldwide. Investigators identified a 16-year-old as the group’s suspected main operator. Three suspects were provisionally arrested and eight properties searched in Greece, Romania, Spain, and the United Kingdom. Authorities also targeted the group’s criminal proceeds.
KillSec stole sensitive data by exploiting vulnerabilities and poorly secured access points to organisations’ systems. Around 500 of the suspected attacks have so far been identified as successful. This figure may change as investigators examine the evidence seized during the operation.
Read more…
Source: EUROPOL News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- UK Government Wants to Keep $7 Billion in Stolen Bitcoin It Has Seized
October 1, 2025
The U.K. Government is seeking to keep most of the $7 billion in Bitcoin it seized in connection with a Chinese investment fraud, following the conviction of the fraud’s alleged organizer this week. Zhimin Qian pleaded guilty on counts of possessing and transferring criminal property at Southwark Crown Court on Monday, following last year’s conviction of ...
- UK: Man arrested in connection with cyber-attack on airports
September 24, 2025
A person has been arrested in connection with a cyber-attack which has caused days of disruption at several European airports including Heathrow. The National Crime Agency (NCA) said a man in his forties was arrested in West Sussex “as part of an investigation into a cyber incident impacting Collins Aerospace”. There have been hundreds of flight ...
- UK: Two teenagers charged over Transport for London cyber attack
September 18, 2025
Two teenagers have been charged in connection with a massive cyber attack which caused Transport for London (TfL) months of disruption. The National Crime Agency (NCA) says it believes the hack – which began on 31 August last year – was carried out by members of the cyber-criminal group, Scattered Spider. Thalha Jubair, 19, from east ...
- U.S. State Department offers up to $11 Million reward for Information about ransomware administrator charged with cybercrimes for deploying “Lockergoga,” “Nefilim,” and “Megacortex”
September 9, 2025
BROOKLYN, NY – Earlier today, a superseding indictment was unsealed charging Volodymyr Tymoshchuk, also known as “deadforz,” “Boba,” “msfv,” and “farnetwork,” a Ukrainian national, for his role in international ransomware schemes. Tymoshchuk is not in U.S. custody. Joseph Nocella, Jr., United States Attorney for the Eastern District of New York; Matthew R. Galeotti, Acting Assistant Attorney ...
- ICE reactivates contract with spyware maker Paragon
September 2, 2025
U.S. Immigration and Customs Enforcement (ICE) signed a contract last year with Israeli spyware maker Paragon worth $2 million . Shortly after, the Biden administration put the contract under review, issuing a “stop work order,” to determine whether the contract complied with an executive order on commercial spyware, which restricts U.S. government agencies from using spyware ...
- Nevada hit by cyber attack disrupting state services for thousands
August 27, 2025
A cyber attack targeting Nevada’s state technology systems has left thousands of residents without access to vital services for days, with many offices still struggling to restore full operations. The attack, which began early Sunday morning, forced the closure of numerous state agencies, including the DMV, State Police, and Attorney General’s offices on Monday and Tuesday. ...