ConsenSys has released its Diligence Fuzzing tool for smart contract security as DeFi losses accelerate in H2.
While the tool was previously released through a closed Beta requiring approval, it is now part of the smart contract toolchain Foundry.
DeFi Diligence Fuzzing Tool Tests DApp Integrity
MetaMask developer ConsenSys says the tool tests how smart contracts respond to semi-random and invalid inputs in specific states. Developers can access fuzzing features of dApp development tool Foundry for free before buying it.
According to the product’s web page, the tool is a “gray box” because it considers the smart contract state when creating test data. In contrast, a black box fuzzing tool would output significantly harder-to-predict data.
The fuzzer can simulate transaction sequences to examine interactions between functions. Additionally, the tool can create three reports offering different insights into dApp functionality.

Earlier this year, ConsenSys launched the alpha testing phase of its new zero-knowledge rollup, Linea.
Fuzzing Tool Complements Recent Advances in AI and Auditing
ConsenSys’ fuzzing product is the latest addition to a
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Author: David Thomas