Code signing is a process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted since it was signed.
NiceHash Miner Legacy is our mining software that also includes 3rd party miners, thus we cannot guarantee for every line of code that goes out with the release. That is the reason why NHML is not signed by NiceHash and users should use it on their own risk.
We suggest you don’t use cryptocurrency wallets or have any access to any cryptocurrency, sensitive or important data on the same computer where you use NHML. NiceHash will never ask or use your private keys, but we cannot guarantee the same for the 3rd party miners included in NHML now or any time in the future.