Key Takeaways
Are Ethereum’s layer-2 networks truly secure?
Vitalik Buterin says yes, but Anatoly Yakovenko warns L2s still face major security risks.
How much value do top Ethereum L2s hold?
Arbitrum, Base, Optimism, and Worldchain together secure over $35 billion in total value locked.
Ethereum’s [ETH] layer-2 networks are under scrutiny after a public clash between Co-Founder Vitalik Buterin and Solana’s [SOL] Anatoly Yakovenko.
The debate is on security; while L2s are meant to inherit Ethereum’s protection, some argue they bring new risks. The dispute has caused discussion among developers and investors about whether these scaling solutions are as safe as promised.
Buterin’s confidence in Ethereum’s L2 security
AMBCrypto previously reported on Vitalik Buterin’s confidence in the security model of Ethereum’s layer-2 networks.
He argued that L2s remain protected from 51% attacks since they inherit Ethereum’s base-layer finality. However, Buterin cautioned that risks emerge when validator sets take on functions outside Ethereum’s direct control, which could undermine those guarantees.
Source: X
His comments come as top L2s hold over $35 billion in TVL, supported by Ethereum’s more than one million validators.
Yakovenko challenges the narrative
There was one loud opposing view, though.
Solana’s Anatoly Yakovenko dismissed Buterin’s claims as “erroneous,” arguing that after years of development, L2s still face the same worst-case risks as cross-chain bridges like Wormhole.
Source: X
He pointed out three main flaws in current L2 designs: complex code that increases attack risk, multi-signature custody that can move funds without user approval, and off-chain processing that centralizes control.
In fact, he also suggested building a special bridge to make Ethereum a layer-2 for Solana, improving interoperability and addressing what he sees as L2s’ lingering security issues.
Source: X
Further, an Ethereum supporter disagreed with Yakovenko, saying there’s “nothing fundamental” stopping L2s from inheriting Ethereum’s security. They also argued that Stage 2 L2s already act like vault contracts with full L1 protection and that Yakovenko’s criticism ignores ongoing upgrades.
Yakovenko pushed back, insisting there is something “fundamental” that still makes it hard for L2s to reach full security.
A challenge, he said, that remains unsolved even after five years.
ETH v SOL: The year gone by
Over the past year, Ethereum and Solana have shown similar price trends, rising and falling almost in sync. Ethereum gained about 15.45%, while Solana climbed 7.39%.
Source: TradingView
Both saw strong rallies mid-year before cooling off in September, then slowly recovered into late October.
At press time, Ethereum held just a slight lead.