Bybit's Lazarus Security Lab report: 16 mainstream blockchains have fund freezing mechanisms.

Odaily Planet Daily reports that Bybit's Lazarus Security Lab released a report titled "Blockchain Freeze Unveiled: Examining the Impact of Blockchain Fund Freezing Capabilities," which points out that among the 166 blockchain networks analyzed, 16 chains contain program code that can directly freeze or restrict user funds, and another 19 chains can achieve similar functionality through minor protocol adjustments.

The report categorizes fund freezing mechanisms into three types:

1) Hard-coded freezing (e.g., BNB Chain, VeChain);

2) Configuration-based freezes set by validators or foundations (such as Sui, Aptos);

3) Freezing of system contract execution (such as HECO).

The report cites examples such as Sui freezing $162 million in assets after the Cetus hack, Aptos subsequently adding a blacklist feature, BNB Chain preventing the transfer of $570 million in cross-chain vulnerability funds through a hard blacklist, and VeChain setting a precedent by freezing $6.6 million in stolen funds in 2019.

David Zong, Head of Risk and Security at Bybit Group, stated that although blockchain is based on decentralization, many chains have begun to introduce more pragmatic security mechanisms to address potential threats. He emphasized that transparency should be at the core of governance, and project teams should proactively disclose relevant contingency plans.