On Wednesday, the $SUI validator community acted quickly to freeze $162M of the stolen funds. Here’s how that happened:

- Each validator has a configuration file that allows it to ignore transactions from a specific address.

- Adding addresses to this file is at the discretion of each individual validator, and can be reversed at any time.

- More than ⅓ of validators by stake chose to ignore transactions from the two addresses they believed to be connected to the attack, effectively freezing the funds.

- The ability of an individual validator to ignore transactions from a specific address is not unique to Sui–any validator in any network can choose to do this, such as to operate within their individual risk tolerance or to comply with law.

- Sui validators acted quickly enough to freeze some (but not all) of the stolen funds, worth approximately $162M at the time of the freeze, before the attacker attempted to bridge them out.