Felix Wilhelm

Chief Technology Officer

Felix Wilhelm, co-founder and CTO at Asymmetric Research, is a renowned security expert with a proven track record in vulnerability research and application security. Formerly a Security Researcher at Google Project Zero and Jump Crypto, his expertise in identifying and responsibly disclosing critical web3 protocol vulnerabilities has resulted in loss avoidances of $5B+ in digital assets.

Ethereum Log Confusion in Polygon's Heimdall

In this blog post, we describe a vulnerability in Heimdall, the validator software of the Polygon Proof-of-Stake (PoS) blockchain. This flaw, if exploited, could have allowed a rogue or compromised validator to take over the Heimdall consensus layer and inject fraudulent events into the StakeSync mechanism, a critical component of the Polygon PoS bridge, putting over $2B of crypto assets in the bridge at risk.

Felix Wilhelm

Felix Wilhelm

Chief Technology Officer

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February 8, 2024

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Ethereum Log Confusion in Polygon's Heimdall

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