The FBI Arrested a Former Executive of the Firm Hamilton Hired After Its 2024 Cyberattack
The FBI arrested Ed Dubrovsky, a former managing director at the cybersecurity firm CYPFER, in Philadelphia earlier this month. The Canadian is accused of being linked to ShinyHunters, a cybercrime hacking group; the allegations have not been proven in court. CYPFER was tasked with helping Hamilton recover from a 2024 cyberattack, and the company says Dubrovsky had no involvement in that work. As of June 30, 2025, the city said it had spent at least $18.3 million on immediate response, system recovery and third-party expert support.
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Analyst Ritesh Kotak told CBC News the arrest created 'a sense of shock' in the cybersecurity community, describing Dubrovsky as for the most part respected when it came to ransomware negotiations. That's the genuinely awkward part: the person an organisation hires while its systems are locked is supposed to be the one you can vouch for in a room full of people you can't.
Shock is not the same as relevance, though. The company says Dubrovsky did no work on Hamilton's case — 'the engagement was handled by CYPFER's delivery team' — and that he has had no affiliation or operational role with the firm since leaving at the end of 2025. Two files, one headline.