Catch up on last week’s top stories in cybersecurity — Europol dismantled a transnational SIM-box fraud ring tied to 3,200 scams and $5.8 million in losses across Europe. An indictment revealed suspected Iranian hackers accessed former national security adviser John Bolton’s emails and issued threats. Researchers from Cisco Talos and Google Threat Intelligence Group detailed new evasive malware techniques used by North Korea-aligned operatives to steal data and cryptocurrency. U.S. officials