Axelar

Axelar receives a D+ risk grade (59/100) from Hindenrank, where lower scores indicate lower risk. Solid cross-chain messaging infrastructure with a battle-tested validator model, but the value-bridged vs cost-of-attack ratio and ITS mint surface warrant caution post-KelpDAO. Axelar is a cross-chain messaging network connecting 55+ blockchains via General Message Passing (GMP). Its security comes from a Cosmos-SDK Proof-of-Stake validator set (~75 validators) that signs threshold-BLS attestations for cross-chain messages. This is the classic 'external validator set' bridge security model — well-understood but with well-known failure modes. After the April 2026 KelpDAO LayerZero exploit ($292M) shifted cross-chain security into the spotlight, every bridge's validator-to-value ratio is under scrutiny. Axelar's Interchain Token Service (ITS) ships canonical cross-chain tokens with similar mint-authority architecture to LayerZero OFT — which means it inherits the same class of risk that just burned Kelp.

The key risks identified for Axelar are: (1) Validator-set security means an attacker compromising 2/3 of Axelar validators can forge cross-chain messages (2) ITS-issued tokens inherit the validator-set trust assumption for mint authority across every chain (3) GMP applications (Squid, ITS, etc.) inherit all Axelar security assumptions — cascade risk is high (4) Axelar does not yet slash validators for incorrectly signing cross-chain messages, only for double-signing blocks (5) Post-KelpDAO exploit, any cross-chain mint-authority design is a prime target for AI-assisted vulnerability research

Axelar scores 59/100 across eight risk dimensions: Mechanism Novelty: 8/15, Interaction Severity: 14/20, Oracle Surface: 6/10, Documentation Gaps: 6/10, Track Record: 10/15, Scale Exposure: 5/10, Regulatory Risk: 4/10, Vitality Risk: 6/10. The highest risk area is Interaction Severity at 14/20.

Among 25 rated Bridge protocols on Hindenrank, Axelar ranks #24 by safety (lowest risk score = safest). Its 59/100 risk score and D+ grade place it among the riskier Bridge protocols.

Axelar scores 10/15 on the Track Record risk dimension, indicating some history of security incidents or exploits. Higher scores reflect more severe or frequent incidents. Review the full risk report for details.