Department of Homeland Security investigators say they’ve thwarted hundreds of ransomware cyberattacks before they occurred and have seized billions of extorted crypto since 2021. United States government agencies were the top targets, accounting for 21% of the disrupted hacks, more than any business sector, Mike Prado, the deputy assistant director of Homeland Security Investigations (HIS) Cyber Crimes Center, told Bloomberg in an Oct. 4 report. The division has disrupted 537 ransomware attacks since it was formed in 2021 and has traced and seized $4.3 billion worth of crypto on exchanges and…