# Consensys Accidentally Hired North Korea-Linked Developer for MetaMask Team The company stated it quickly identified the security threat. - **Source:** [INCRYPTED](https://brifing.si/source/7cd4625d-3f08-4cc1-983d-4c7d991839ba) - **Published:** 2026-07-19 - **Topic:** [Finance](https://brifing.si/c/finance) - **Original article:** - **On Brifing:** https://brifing.si/s/3a09a6cd-1d20-4d8d-afc7-e1d9a876651a ## Security Breach at MetaMask Consensys mistakenly hired a developer linked to North Korea as a consultant for the MetaMask team. This individual had access to the company's internal systems and worked on the code for about a month. ## Quick Detection and Response Consensys quickly detected suspicious activity and immediately revoked the developer's access. The company confirmed that no data leaks or user security breaches occurred. ## Use of Fake Identity The developer worked under the pseudonym Tyler Knapp and a GitHub account. They contributed to critical components of MetaMask, such as modules converting cryptocurrencies to fiat. ## North Korea's Crypto Targets North Korean hacker groups particularly target crypto companies. Developer access can encompass not only source code but also transaction signing infrastructure. ## Past Incidents and Losses North Korean hacker groups were responsible for 76% of the crypto market's losses in 2026. The total value of stolen crypto assets in 2025 exceeded $2 billion. ## Importance of Security Protocols Following this incident, Consensys reviewed its procedures for working with third-party consultants. The company expressed pride in the swift operation of its security protocols. ## Sources covering this story - https://incrypted.com/consensys-sluchajno-nanjala-svjazannogo-s-kndr-razrabotchyka-v-komandu-metamask/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._