Shibarium Bridge
Summary
The Shibarium Bridge is the Ethereum-to-Shibarium cross-chain bridge operated by the Shiba Inu ecosystem team, enabling transfer of SHIB, BONE, LEASH, and other tokens between Ethereum mainnet and the Shibarium Layer 2 network. The bridge suffered two major incidents: a chaotic launch in August 2023 that left approximately $1.7 million in ETH temporarily inaccessible, and a far more serious exploit in September 2025 in which attackers compromised 10 of 12 validator signing keys to drain approximately $3–4.1 million in assets. The bridge was partially restored in October 2025 following a security overhaul, but hack victims faced ongoing repayment delays and independent analysts raised persistent concerns about centralization and governance design.
Connected Entities
1 entities · 10 linked investigationsTimeline(10 events)
2023-08-16
Shibarium mainnet launches; block production halts within hours and approximately $1.7M in ETH (956 ETH) and additional BONE tokens become stuck in the bridge contract. Lead developer Shytoshi Kusama attributes the failure to excessive traffic rather than a bridge bug.
Decrypt2023-08-17
Polygon Labs co-founder Sandeep Nailwal provides technical resources to help restore Shibarium. Network resumes operation and stuck funds become accessible.
Cryptonews.net2025-09-12
Attacker exploits Shibarium Bridge at 18:44 UTC using a flash loan of 4.6 million BONE tokens to gain supermajority validator control, combined with compromise of 10 of 12 validator signing keys. Fraudulent checkpoints are submitted to Ethereum bridge contracts, enabling unauthorized withdrawal of approximately $3–4.1 million in SHIB, ETH, KNINE, LEASH, ROAR, and other tokens.
The Block2025-09-12
Shiba Inu team pauses staking and unstaking, freezing the attacker's borrowed BONE within lock periods. Bridge operations are halted. Law enforcement contacted.
Shiba Inu Official Blog2025-09-13
BONE price temporarily surges 40% as staking freeze reduces circulating supply pressure; SHIB has dropped ~11.5% and BONE had fallen ~43.5% immediately post-exploit.
CoinDesk2025-09-22
Lead developer Kaal Dhairya releases post-exploit developer report, acknowledging ongoing investigation into the breach origin.
The Shib Daily2025-09-23
Kaal Dhairya commits to a four-phase security hardening plan including validator hygiene, policy-level controls, expanded decentralization, and ongoing independent audits. Security firms Hexens, PeckShield, and Seal 911 engaged.
The Shib Daily2025-09-24
Shiba Inu team offers 50 ETH bounty (~$225,000) for voluntary return of stolen assets, expressing willingness to negotiate with the attacker.
MEXC News2025-10-14
Shibarium Plasma Bridge reopened for BONE token transfers following an independent audit by Hexens, with new security features including a seven-day mandatory withdrawal delay and address blacklisting.
The Shib Daily2025-10-15
Reports confirm hack victims still face delays in receiving restitution despite the bridge's partial reopening, with the team pledging refunds through ecosystem reserves.
The Crypto BasicDecision Log
- hash: 9drCmobCV477d5vySHDq3Fi84cUpMxtPNxU3vjSnTVRM
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-sonnet-4-6
generated: 6/30/2026, 12:11:01 PM
last updated: 6/30/2026, 12:11:12 PM
avoid.net — verified advice for a post-truth world