[greg7mdp]

They didn't sign a transaction for 1 billion dollars. They all signed what they thought was a routine transfer, but in reality what they signed gave the hacker full control of the smart contract (the Gnosis Safe) in which the 1.4B $ of tokens were stored. The hackers, having gained control of the smart contract, proceeded to empty it of funds.

[wslh]

Safeties applies as well, it is not the same to have a Gnosis smart contract with 1k, 1m, or 1b. They should change the smart contract to add extra steps in these circumstances, this includes Safe itself.