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U.S. officials seeking extradition of Ottawa man accused of record cyberattack

Jacob Butler, 23, is accused of helping run Kimwolf, a botnet linked to millions of compromised devices and servers worldwide.

  • On Wednesday, Ontario Provincial Police arrested 23-year-old Jacob Butler of Ottawa, who now faces extradition to the United States on charges of aiding and abetting computer intrusion.
  • Butler allegedly operated Kimwolf, a botnet utilizing a 'cybercrime-as-a-service' model that hijacked nearly 2 million IoT devices to launch over 25,000 DDoS attacks, causing financial losses exceeding $1 million for victims.
  • Investigators linked Butler to Kimwolf's backend through operational security lapses, including overlapping IP usage across Google and Discord accounts despite his attempts to evade scrutiny using proxy and VPN services.
  • Butler remains in custody pending a Tuesday appearance in Ontario Court of Justice; if convicted in the United States, he faces up to 10 years in prison, though sentencing guidelines may consider his youth.
  • This arrest follows a March international operation where U.S., German, and Canadian authorities seized infrastructure powering Kimwolf and three related botnets that collectively infected over 3 million IoT devices, which remain persistent targets for threat actors.
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Global News broke the news in Toronto, Canada on Thursday, May 21, 2026.
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