> The 2017 transfers notwithstanding, the majority of the stolen funds remained in Wallet 1CGA4s from August 2016 until January 31, 2022. On January 31, 2022, law enforcement gained access to Wallet 1CGA4s by decrypting a file saved to LICHTENSTEIN’s cloud storage account, which had been obtained pursuant to a search warrant. The file contained a list of 2,000 virtual currency addresses, along with corresponding private keys.
> ...The connection among the VCE 1 accounts was further confirmed upon reviewing a spreadsheet saved to LICHTENSTEIN’s cloud storage account. The spreadsheet included the log-in information for accounts at various virtual currency exchanges and a notation regarding the status of the accounts
> ...Lichtenstein Email 2 was held at a U.S.-based provider that offered email as well as cloud storage services, among other products. In 2021, agents obtained a copy of the contents of the cloud storage account pursuant to a search warrant. Upon reviewing the contents of the account, agents confirmed that the account was used by LICHTENSTEIN. However, a significant portion of the files were encrypted
Of course that txn would show up on-chain, but if you don't have possession of the private key for the first account, and no digital device has ever "seen" the hardware account then he would've been fine.
This is assuming the key piece of evidence was his private key, and he wouldn't have been prosecuted without it.
Additionally, putting your key in cloud storage sounds like the dumbest thing ever... Just memorize your seed phrase and write it down. Its 4bn for christ sake.
Printing the paper wallets, putting them in a $1 glass jar with a silica packet and burying in your back yard would have been 100 times smarter.