Ethereum’s layer-two (L2) networks are facing renewed scrutiny over their security claims. While Ethereum co-founder Vitalik Buterin defends the current framework, prominent crypto figure Anatoly Yakovenko argues that these networks fail to inherit mainnet safety despite promising progress. 5 years into its scaling roadmap, the question of L2 security remains unresolved. Yakovenko challenges the prevailing notion that Ethereum’s L2s secure user assets like their base layer counterpart. He highlights the complex structures and vulnerabilities within L2 platforms, arguing that they expose users to potential attacks due to their intricate design and susceptibility to software flaws. 51% attack resistance is maintained by the base chain, but Yakovenko suggests this protection doesn’t extend beyond on-chain activities when validators are entrusted with off-chain tasks. He emphasizes the need for fundamental security improvements in L2s to overcome the current limitations. Buterin acknowledges that layer-2 networks inherit finality and 51% attack resistance from Ethereum but warns that this protection is limited to on-chain activity, leaving users vulnerable if trusted off-chain. The debate underscores a growing divide within the crypto community about the future of Ethereum’s L2 ecosystem, with some experts questioning its viability as an independent security layer. Yakovenko’s proposal for bridging Ethereum and Solana suggests a potential solution to improve interoperability and address his concerns regarding safety. The debate highlights the ongoing challenge of balancing speed and security in blockchain design as the crypto world continues to develop rapidly.