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The Polylog Crypto Intelligence Brief

Morning Edition · Tuesday, July 21, 2026Published at 1:29 AM EDT · New York

Consensys Says North Korea-Linked Developer Worked on MetaMask Core Code for About a Month

A contractor using the alias "Tyler Knapp" entered through a third-party provider and touched code supporting crypto-to-fiat conversions before access was revoked, with no funds or data reported lost.

Consensys Says North Korea-Linked Developer Worked on MetaMask Core Code for About a Month

Consensys, the company behind the MetaMask wallet, disclosed that a developer linked to North Korea worked on MetaMask code for about a month before being identified. The contractor operated under the false identity "Tyler Knapp," used the…

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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.