Two groups account for a third of UK ransomware attacks

UK ransomware attacks rose 60% quarter-on-quarter and 42% year-on-year, according to Cohesity. Qilin (19%) and The Gentlemen (13%) were behind 32% of UK attacks. Globally, ransomware hit a record high, up 28% on the quarter and 86% year-on-year.

• Qilin accounted for 19% of UK attacks and made around $193 million between July 2025 and March 2026
• The Gentlemen, which emerged in July last year, was behind 13% of UK attacks
• 109 ransomware groups were active globally in Q3 2026, with 35 new groups emerging
• The US share of attacks fell from 51% to 34%, while European victims more than doubled