A Russian wallet? I thought cryptos were untouchable if you hold the keys?
As @heartastack pointed out, they’re hosted wallets on exchanges. You probably know a wallet is just an address on the blockchain. Your public key is your address, your private key is what gets you access to the data stored on the blockchain at that address.
If you have a wallet on an exchange you don’t get the private key, Binance for example keeps custody of your data on your behalf.
If you have a software wallet or a hardware wallet and have the private keys for them then they’re not custodial wallets and only you can access the funds.
Unless of course you write down the private key and store it on the Cloud lol