What is this trick?

[Elok]

Hello guys, I have seen a trick multiple times now that involves a dollar bill and I long desperately to learn it. The effect is that you borrow a spectators dollar and have them sign it. You then proceed to move the little security letter from one side of the bill to the other. Does anybody know what this trick is and where I could learn it?

 

[Dean Magic]

I'm pretty sure you're talking about Fraud by Daniel Garcia:
http://www.ellusionist.com/fraud-by-daniel-garcia.html

 

[WitchDocIsIn]

That's the one.

Be aware, though - I have heard that newer bills are not as friendly to the method.

 

[Elok]

Thank you guys so much! I will look into it later, for now I have a game to coach.

 

[Justin.Morris]

That's the one.

Be aware, though - I have heard that newer bills are not as friendly to the method.

Haha the fact that this trick could work in the first place is probably a big security problem. I would imagine they have fixed it by now. Cool effect though!