Chainalysis Reports 440% Surge in Malware Using Blockchains for Dead Drops
Rise in On-Chain Command-and-Control Infrastructure Chainalysis has reported a significant increase in cyber attackers using public blockchains to store malware instructions, a tactic the firm terms “Blockchain Dead Drops” or BDDs. According to data released by the blockchain analysis firm, malicious on-chain writes have risen approximately 440% since mid-2025. The broader
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