Vitalik warns that Stage-2 L2s aren't fully secure without deeper cryptographic proofs. Relying only on multisigs isn’t enough to protect users and funds.
🔍 Starknet’s Daniel Wang suggests a new label: “BattleTested” — for L2s that survive real-world stress.
✅ Bug bounties
✅ Ongoing audits
✅ Transparent testing
These are essential to secure Ethereum's growing L2 ecosystem.