CryptoMedium•2 October 2026•
1 min read
Arbitrum Pauses New Stylus Activations in Emergency Security Action
Key Facts
1Arbitrum has paused new Stylus activations as an emergency security measure to safeguard network stability.
2Existing Stylus contracts can continue running and renewing despite the suspension of new activations.
3The network added a BoLD guard which may delay unconfirmed withdrawals if contradictory proofs are accepted.
Arbitrum has paused new Stylus activations as an emergency security measure to safeguard network stability. Crypto Briefing reported that the action aims to prevent the deployment of unpatched programs that could be used as denial-of-service (DoS) vectors to impair network liveness.
Existing Stylus contracts can continue running and renewing despite the suspension of new activations. Additionally, the network introduced a BoLD guard mechanism, which may delay unconfirmed withdrawals if contradictory proofs are accepted, as part of proactive security measures for Arbitrum One and Nova.