Linea has activated Phylax’s Credible Layer on its mainnet, a system that simulates transactions and rejects those that violate security rules defined by applications. Assertions, or invariants written in Solidity, are checked at the sequencer level before transactions are included in a block, without modifying immutable contracts or causing any announced increase in latency or throughput. The feature remains opt-in and initially covers four protocols: Euler, Malda, Denaria and Turtle Club. Linea, the zkEVM layer 2 developed by ConsenSys, says it is the first major network of its kind to incorporate proactive, protocol-defined exploit prevention.
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