It doesn't matter much. First of all, if the other party signs, it is not the representative of your company and there is no power of attorney. If the other party really wants to forge a signature to threaten you, it is suspected of fraud and criminal offence. Oh, it's serious. I don't usually dare.

In addition, general contracts have effective conditions, such as payment. It will only take effect if the other party pays. They didn't give your company money, even if they signed and sealed it, it wouldn't take effect.

Therefore, the risk is not great. But I suggest you get the contract back as soon as possible. In the future, we should also pay attention to the fact that the contract is a very important document and must be kept well.