An unauthorized signature is wholly inoperative and will not bind the person whose name is signed or forged.

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An unauthorized signature (i.e. a signature that is not authorized by the purported signer) is considered a forgery and is therefore invalid. It will not bind the person whose name is signed or forged. This is based on the principle of non est factum, which means "it is not my deed."

An Unauthorized Signature Is Wholly Inoperative and Will Not Bind