It's true, Last week there were a number of security incidents in the cryptocurrency world as OP said the first Cold attacker targeting crypto OG, but the details are still unknown which caught my attention namely Lastly, the Trust Wallet browser extension was found to have a mnemonic vulnerability, which could potentially lead to funds was stolen but from those few moments I think, This incident highlights the importance of staying alert and taking the necessary precautions when it comes to cryptocurrency security.
No one knows how the attacks were made or who they were from. The hacker made it suspicious that the other victim from one end will think it's another victim who attacks him, when it's just the hacker trying to send a gas fee from one of the victims addresses to another, which could be used for token swap in any of the victims wallets that hold a swappable token on them.
According to the link dropped by the OP, the author herself still doesn't know where those leaks are from, and they did not just start last week; they have been happening since sometime last year. And those leaks are not just on trust wallet extensions or Metamask; some hardware wallets are also affected, which means those hardware wallets were connected to an already infected device.
It's just advisable for us to have a completely separate gadget for all crypto transactions and another device for daily use. If possible, to be on the safe side, we should have multiple wallets, even if they're hardware wallets. We should have more than just one and split assets between them so that if one wallet is affected, your entire fortune won't be completely lost.