Similarly, there are always some people in this world who are careless, leading to the leak of the wallet key file and causing themselves heavy losses. On Twitter, someone once demonstrated using the AWS S3 resource scanning tool and found multiple Bitcoin wallet key files, wallet.dat, which can be downloaded publicly! Anyone who downloads the file and imports it into the Bitcoin client can transfer encrypted digital assets!
If it's encrypted, simply having the wallet file isn't enough to steal the cryptocurrency. The hacker need to brute-force the wallet and it'll take long time unless it's encrypted with weak password or hint/part of the password is known.
Thank you very much for your correction, I am going to modify it now.