Authorities in the US and the Netherlands have disrupted a Pakistan-based cybercrime network selling hacking and fraud-enabling tools. The operation, named Operation Heart Blocker, led to the seizure of 39 domains operated by Saim Raza and HeartSender, who sold phishing kits, scam pages, and email extractors since 2020. These tools, advertised as undetectable by antispam solutions, facilitated business email compromise (BEC) schemes, causing over $3 million in losses in the US. Cybercriminals worldwide used them to steal credentials and spread phishing campaigns. The marketplaces also sold hacked infrastructure, including web servers and SMTP servers. Authorities have identified several buyers, including individuals in the Netherlands.

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