How much was stolen from Gravity Bridge?

Blockchain security firm PeckShield estimated that attackers stole around $5.4 million in assets. The haul included roughly $4.3 million in USDC, 274 WETH worth about $553,000, $434,000 in USDT and around $64,000 in PAX Gold.

What is Gravity Bridge?

Gravity Bridge is a cross-chain protocol that allows users to transfer assets between the Ethereum and Cosmos ecosystems. It helps move tokens between Ethereum-based platforms and Cosmos-based blockchains and decentralised exchanges.

Why are cross-chain bridges frequently targeted by hackers?

Cross-chain bridges often control large pools of assets and rely on complex smart contracts and validator systems. Because they connect different blockchain networks, they can create additional attack surfaces compared with single-chain applications.

How did the market react to the Gravity Bridge exploit?

The protocol's native token, GRAV, fell about 4% following news of the incident. Security breaches often damage investor confidence and can lead to lower token prices, reduced usage and liquidity outflows.

Were the stolen funds moved or laundered?

According to PeckShield, some of the stolen assets were moved through instant-swap platform ChangeNow and Binance. The security firm also reported that the attacker's wallet was still holding a significant portion of the stolen ETH when it published its findings.

Why does this exploit matter for the broader DeFi sector?

The incident adds to ongoing concerns about the security of decentralised finance infrastructure. Bridge hacks remain one of the largest sources of losses in crypto and continue to raise questions about whether DeFi can safely support institutional-scale activity.

Image for illustrative purposes only. Not a real photo.

Gravity Bridge halts network after $5.4M exploit

Q: What happened to Gravity Bridge?

Gravity Bridge halted its cross-chain bridge operations after a suspected security breach led to the theft of approximately $5.4 million in digital assets. The project's validators stopped the bridge while an investigation into the incident is underway.

Q: What caused the Gravity Bridge exploit?

The exact cause has not been officially confirmed, but onchain analyst Specter suggested that a key controlling the Gravity Bridge contract may have been compromised. If true, the attacker could have gained the ability to authorise unauthorised asset transfers.

Written by Mahathir BayenaPublished Jun. 1 2026Last Updated Jun. 1 2026

Gravity Bridge has halted its cross-chain bridge operations after a suspected security breach resulted in the theft of approximately $5.4 million in digital assets.

Onchain analyst Specter first identified unusual fund outflows on Saturday and suggested that a key controlling the Gravity Bridge contract may have been compromised, allowing attackers to drain assets from the protocol.

“It appears the Gravity Bridge contract key may have been compromised, resulting in the theft of $5.4M,”

Said onchain analyst Specter.

Blockchain security firm PeckShield estimated the stolen assets included around $4.3 million in USDC, 274 Wrapped Ether worth roughly $553,000, $434,000 in USDT and approximately $64,000 in PAX Gold tokens.

Gravity Bridge acknowledged the incident and instructed validators to halt their validators and orchestrators while the breach is investigated, later confirming that bridge operations had been suspended.

The protocol enables transfers between the Ethereum and Cosmos ecosystems using a validator-based model designed to decentralise transaction approvals rather than relying on a small group of signers.

The incident has placed additional pressure on the bridge's native Graviton token, which fell about 4% over the past 24 hours, while broader concerns around bridge security continue to weigh on decentralised finance infrastructure.

The exploit follows a series of major bridge-related attacks in 2026, with cumulative losses across eight major incidents reaching more than $328 million and prompting increased scrutiny from institutional investors evaluating risks in the decentralised finance sector.

At the time of reporting, Ethereum price was $1,983.67.