Is there a difference between your 'signature' and your 'mark'? One of the comments on this post on Bruce Schneier's blog claims there is:
This might be out of date in these days of 100% literacy (yes, that is sarcasm) but it's not actually your "signature", it's your "mark". This is why serious contracts require witnesses.
If there is a difference, then what exactly is it?
Best Answer
Traditionally, if a party to a contract were unable to sign their name, they would literally make their mark (and often get a witness to sign that they had made the mark themselves).