Polylog
The Polylog Crypto Intelligence Brief

Morning Edition · Sunday, June 21, 2026

Security Roundup: Key Compromises and Bridge Mints Drive a Costly Month

Beyond the drained extraction bot, June's losses cluster around stolen private keys and bridges that minted tokens without any backing.

Security Roundup: Key Compromises and Bridge Mints Drive a Costly Month

Apart from the main exploit, June produced a steady series of multimillion-dollar losses, and the pattern is instructive. The largest, reported by Rekt News, was Humanity Protocol, where roughly $36.4 million was taken across Ethereum and B…

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Endpoint Malware Targets Crypto Keys Beyond Smart-Contract Exploits

Beyond on-chain contract exploits, key-harvesting malware targets private keys at the device and supply-chain level, opening a distinct and growing attack surface for crypto holders.