Gravity Bridge
Last changed 2026-10-10 · Score recalculated — Rescored under Scoring v2, the published formula (avoid.net/scoring): 22 → 37. Problems weighed by who is responsible: incidents the subject suffered −20, concerns that are not fraud −12, problems around the subject, caused by others −1.1; legitimacy credit long-running +8; the penalty for incidents it suffered is capped at 20; a recent unresolved incident −12.9. Version history →
Why this score
| Every page starts at | 65 |
| Concerns that are not fraud | -12 |
| Incidents it suffered (e.g. hacks) | -20 |
| Problems around it, caused by others | -1.1 |
| Long-running | +8 |
| Recent unresolved incident | -12.9 |
| Sum | 27 |
- The penalty for incidents it suffered is capped at 20 points.
Score: 37/100 (kept between 0 and 100)
How scoring works →Summary
Gravity Bridge is a purpose-built, decentralized blockchain bridge developed by Althea Network that enables bidirectional transfer of ERC-20 tokens between Ethereum and the Cosmos IBC ecosystem. It launched mainnet in December 2021 after three independent security audits and became the most widely adopted bridge in the Cosmos ecosystem. On May 30, 2026, the bridge suffered a critical security incident in which approximately $5.4 million was drained via an alleged validator signing-key compromise, prompting a full bridge halt that remained in effect as of June 2, 2026.
Connected Entities
6 entities · 60 linked investigations- Gravity Bridge→mentioned with→Ethereum(80%)
- Gravity Bridge→mentioned with→Kelp(65%)
- Gravity Bridge→mentioned with→Binance(70%)
- ChangeNOW→mentioned with→Ethereum(65%)
- Binance→mentioned with→Ethereum(65%)
- ChangeNOW→mentioned with→Binance(65%)
- Cosmos (ATOM)→mentioned with→Binance(60%)
- Gravity Bridge→mentioned with→ChangeNOW(70%)
- Gravity Bridge→mentioned with→Cosmos (ATOM)(80%)
- ChangeNOW→mentioned with→Gravity Bridge(80%)
- + 3 more
4 submissions awaiting moderator review.
Timeline(7 events)
26 August 2021
Code4rena competitive audit contest for Gravity Bridge opens, with a prize pool exceeding $100,000. The contest runs through September 8, 2021, and yields 44 findings including 4 HIGH severity.
Code4rena audit report14 December 2021
Gravity Bridge mainnet launches in a decentralized genesis event with over 100 validators, following two years of development and three independent audits.
Business Wire press release26 January 2022
Gravity Bridge frontend goes live, with first transfers of DAI, ETH, and USDC from Ethereum to Cosmos.
Gravity Bridge Q3 Updates / Stakin blog30 May 2026
Approximately $5.4 million is drained from the Gravity Bridge Ethereum-side contracts. PeckShield and on-chain analyst Specter flag the incident. Two attacker addresses identified: 0x7B582033061b96cC3F9421e73a749ED7C62da1F9 and 0x4d3ca32e687e871a58b78AcAc73bE59AC37C7A47. Stolen assets: ~$4.3M USDC, ~$553K ETH (274 ETH), ~$434K USDT, ~$64K PAYG tokens.
The Block30 May 2026
Gravity Bridge team issues official statement instructing all validators and orchestrators to halt operations immediately while the incident is investigated. Bridge fully suspended.
Grafa / crypto.news30 May 2026
Attacker begins laundering stolen funds through ChangeNow and Binance. TVL drops from approximately $11.82M to $6.24M — a 47% decline.
AMBCryptoJune 2026
Attacker wallet 0x7B582033... still holds approximately 2,102 ETH (~$4.23M). Bridge remains halted. No postmortem published.
CryptopolitanDecision Log
- slot 455359541 · hash 7Wvgm456mmeWWTi7CPFQZs96eWyyx36KqqepDfmnnqBh
- slot 423867592 · hash EGYBeLhShw2gPZ879FD4xF6y4YqnLABAXSKoVPJpso7C
This investigation is cryptographically anchored to the Solana blockchain (2 decisions). 23 of 25 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-6
generated: 6/2/2026, 6:52:25 PM
last updated: 10/10/2026, 6:40:49 PM
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