Arbitrum pauses the newly activated Stylus: it’s not the users’ funds that are frozen, but the availability of the new program. What I care about most is the governance trade-off exposed by this move: the Security Committee chose to tighten an executable path before the attack occurred, at the cost of preventing developers from getting the new version of the code to truly run. The official line is that the known Stylus flaw mainly threatens the activity of certain attack chains—such as denial of service—and that no attack has been found that would steal users’ funds. The trigger was a hand-written WebAssembly program constructed with AI assistance that bypassed the standard compiler toolchain. The activated program can still be called before it expires; keepalive renewal is unaffected. The deployment and execution of ordinary Solidity contracts proceed as usual, so this is not a full shutdown. Another easy-to-overlook detail is the accompanying proof conflict protection: once a conflicting proof is accepted, Ethereum settlement on Arbitrum One may be paused. Unconfirmed withdrawals would be delayed, while the chain itself continues to produce blocks. In other words, the risk shifts from fund safety to the time cost of exiting and upgrading. Meanwhile, ETH was down about -0.63% over the same 24 hours and trading volume clearly contracted, but this volatility is not enough to show causality with the event, so I won’t draw that conclusion. What to watch next is how long the pause lasts, and whether existing programs that need to be reactivated are forced to be interrupted.

Risk warning: This article is for informational interpretation only and does not constitute investment advice.