Optimism took measures to upgrade its testnet after identifying two severe vulnerabilities that were fixed after at least two weeks. Offchain Labs, Optimism’s competitor, pointed out these complex challenges. The vulnerabilities, discovered by Offchain Labs and disclosed on March 22, pertained to fraudulent activity manipulation in the OP Stack fraud-proof mechanism and the potential blockage of valid chain history acceptance.

Offchain Labs has flagged these difficulties as demanding issues due to the complexities surrounding the creation of fraud-resistant protocols and the associated temporal intricacies. To bolster security against potential attacks, Optimism promptly integrated timer-handling code post-disclosure, aiming to fortify network defenses and thwart censorship and traitor attacks.

Following Ethereum’s Dencun update, Optimism has established itself as the leading protocol based on developer engagement and net flows over a week. Surpassing longstanding industry giants such as Polkadot and Cardano, Optimism’s ascent to the top spot has occurred within just two years of its existence. Furthermore, as the platform’s total-value-locked (TVL) steadily increases, there has been a notable surge in core developers and Github contributions, as indicated by DefiLlama.