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Who are the top 5 ransomware groups to watch?

March 2, 2026

Luke Donovan
LD

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Luke Donovan

Head of Threat Intelligence at Searchlight Cyber

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Overview

Ransomware groups claimed a record 7,458 victims in 2025. This was a 30% increase on 2024, with the growth rate of victims more than doubling year-over-year. Watch this highlight from our recent ransomware webinar to find out which groups were most prolific in the second half of 2025.

Luke Donovan
LD

Speaker

Luke Donovan

Head of Threat Intelligence at Searchlight Cyber

Luke Donovan is Head of Threat intelligence at Searchlight Cyber. Luke’s background is in military intelligence and security within the British Army, where he served in Afghanistan, Libya, and the Middle East, supporting counter-terrorism and narcotics efforts. He later transitioned to the cyber sector and now leads our expert team of threat intelligence analysts at Searchlight.

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