Insider Trading: From Google:
"Insider trading" is buying or selling a security while having material, nonpublic information about the security, in breach of a fiduciary duty or other relationship of trust and confidence. Insider trading may also include "tipping" such information, securities trading by the person "tipped," and securities trading by persons who misappropriate such information. Insider trading is a felony, and the SEC can levy large civil penalties for violations.
Signatures are so yesterday!