Security · 1h ago
L2 Deployments Create New Attack Surfaces Auditors Often Miss
A $3.8M exploit on Umbrella Network in 2022 stemmed from deploying Ethereum mainnet code on Polygon without adjusting for faster block times and lower liquidity. Block timestamps, sequencer behavior, and bridge trust assumptions differ significantly across L2s and sidechains, creating vulnerabilities that standard EVM audits overlook. Developers must adapt security models to each chain's unique execution environment to avoid similar losses.
Meridian48 take
The piece rightly warns that EVM compatibility is a trap, but the real story is how few teams budget for chain-specific audits — a blind spot that will only grow as L2 adoption accelerates.
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Polygon and L2 Smart Contract Differences: What Auditors Find That Gets Protocols Rekt →
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