[Bybit Report: 16 Blockchains with Fund Freezing Mechanisms]
Bybit's Lazarus Security Lab released a report stating that out of the 166 blockchain networks analyzed, 16 chains contain program codes that can directly freeze or restrict user funds, while another 19 chains can achieve similar functionality through protocol adjustments. The report categorizes fund freezing mechanisms into hard-coded freezing (e.g., BNB Chain, VeChain), configurable freezing (e.g., Sui, Aptos), and contract-based freezing (e.g., HECO). The report mentions that Sui once froze $162 million in assets, Aptos introduced a blacklist feature, BNB Chain prevented the transfer of $570 million in cross-chain exploit funds, and VeChain froze $6.6 million in stolen funds in 2019. Bybit's Risk Control Director, David Zong, stated that transparency should be the core of governance, and project teams should proactively disclose emergency mechanisms.