Code4rena winding down (2026)

What closed: Code4rena, the competitive smart-contract audit platform, states on its homepage that it "is winding down" and "closing its doors" after five years; contests were still listed into May 2026 at $40,000 (Rujira), $101,000 (LayerZero) and $135,000 (K2) in USDC, after 512 audits and 16,600+ registered wardens (official homepage).

If you compete there

• Withdraw any unpaid contest awards and export your findings history; the record gives no post-closure timeline.
• Keep your public leaderboard standing as a portfolio artefact before the site goes dark.

Verified alternatives in the registry (category 18)

• Immunefi: cites "$25B+" in hacks prevented; payout totals and any fee on rewards are not on the page (official).
• Cantina: a bug bounty platform that deduplicates and validates reports with a public researcher leaderboard (official).
• Synack Red Team: $500 to several thousand per vulnerability, missions at $25 to $50 and ad-hoc work at $100 and up, same-day pay after a five-stage vetting (official).
• Bugcrowd: an average P1 payout of $3,000, paid within hours (official); HackerOne cites $380 million rewarded and Intigriti EUR 50 million (official totals).

See the [bug bounty category](../category/18.html).