BlackSuit Security Incident

Infosecurity Magazine Home News BlackSuit Ransomware Groups Dark Web Sites Seized in Operation Checkmate BlackSuit Ransomware Groups Dark Web Sites Seized in Operation Checkmate News 25 Jul 2025 Written by Kevin Poireault Reporter , Infosecurity Magazine Follow @Kpoireault Connect on LinkedIn BlackSuits dark web data leak site and private negotiation panels have been taken offline in what appears to be a large-scale law enforcement operation. On July 24, the ransomware groups leading site, usually accessible via The Onion Router (TOR), displayed a banner stating, This site has been seized by U.S. Homeland Security Investigations as part of a coordinated international law enforcement investigation. Seizure banner appearing when a user tries to reach BlackSuits data leak site. Source: Infosecurity Magazine No official statement has been made at the time of writing, however, the banner shows that the effort, dubbed Operation Checkmate, involved the US Department of Justice (DoJ) and 16 other law enforcement agencies from nine countries. The international coalition included the US, the UK, Ukraine and Latvia, as well as Europol and Bitdefender, a private cybersecurity firm based in Romania and the US. From Conti to BlackSuit, Via Royal: Who Is BlackSuit BlackSuit is a ransomware group that emerged in May 2023, with 184 claimed victims, according to the ransomware tracking website Ransomware.live. BlackSuit's victims per month (20232025). Source: Ransomware.live The group is believed to be a rebrand from the Royal ransomware gang, which itself was a successor to the notorious Conti group. The Conti ransomware group, active from December 2019 until its dissolution in June 2022, was known for its aggressive tactics and high-profile attacks, including the significant 2022 cyber-attack on Costa Rica's government systems. Following Conti's disbandment, its members dispersed into various factions, with some forming the Royal ransomware group in early 2022. Royal gained...

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