BlockBeats News, April 21st, Dragonfly General Partner Haseeb Qureshi released an analysis regarding the "Arbitrum Security Council Freezes KelpDAO Hacker's 30,766 ETH," stating that the transaction was of type ArbitrumUnsignedTxType (EIP-2718 type 0x65/101). This was a system-level transaction that could not be signed by a regular EOA and could only be injected by the Arbitrum Security Council through ArbOS. This operation did not involve any chain rollback or historical rewriting but functioned as a state-level clawback: the attacker's private key can still sign transactions, but the ETH from that address was moved by the chain itself. This operation also showcased the Security Council's power in a "catastrophic emergency" scenario as described in Arbitrum's progressive decentralization documentation.