HSI Disrupts 537 Ransomware Attacks and Seizes $4.3B in Cryptocurrency Since 2021 The U.S. Homeland Security Investigations (HSI) agency has achieved significant success in combating cybercrime, disrupting a staggering 537 ransomware attacks since its formation in 2021. According to a recent report by Cointelegraph, which cited an interview with Mike Prado, the deputy assistant director