# Ethereum Launches $2M Fusaka Audit Contest

*Author: Bankless*
*Published: Sep 16, 2025*
*Source: https://www.bankless.com/read/ethereum-launches-2m-fusaka-audit-contest*

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The Ethereum Foundation kicked off a four-week audit contest for its upcoming Fusaka upgrade, offering up to $2M in rewards to white hats who find bugs before the hard fork hits mainnet—potentially as early as Q4 2025.

### **What’s the Scoop?**
- **Audit Window Opens:** Running from Sept. 15 to Oct. 13, the contest is hosted by Sherlock and co-sponsored by Gnosis and Lido. Week one offers 2x rewards, followed by 1.5x in week two to encourage early participation.
- **Fusaka Upgrade Scope:** The upgrade bundles a dozen EIPs focused on security, throughput, and efficiency, including Peer Data Availability Sampling—a feature designed to improve rollup capacity by decentralizing blob data checks.
- **Building on Past Audits:** Sherlock previously led Ethereum’s Pectra bytecode review, part of the Foundation’s strategy to combine crowdsourced contests with standing bounties for better pre-launch security.

### Bankless Take:
The auditing process is an essential aspect of any major coding initiative. Although the consequences of a bug in Ethereum could be much greater than the committed $2M bounty reward, this audit contest should help to flush out any remaining upgrade flaws.

[What Fusaka & Pectra Will Bring Ethereum on BanklessHere’s what Ethereum’s next two major upgrades spell for the network’s future.![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/icon/apple-touch-icon-537.png)BanklessDavid Christopher Mar 24, 2025 • 7 min read![](https://storage.ghost.io/c/e4/b7/e4b77544-5a37-4f0b-8824-8440aa348476/content/images/thumbnail/NL_ethup3_032425-2.webp)](https://www.bankless.com/read/what-fusaka-pectra-will-bring-ethereum)
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