Originally Posted by LondonElite
Good luck finding out who the friend is! If the persontrying to use the certs doesn't volunterr the information, they have no way of knowing!
I don't for a minute imagine that AC would have gone to the expense and trouble but the technology does exist to individually serialize documents like this and be essentially undetectable. It was revealed a while ago for example that some colour printers include barely detectable yellow dots in their output that encode the printer's serial number.