Two weeks ago, Adobe released a critical patch for Flash Player and Acrobat Reader.

According to online security company Trusteer, about 80 of users are still vulnerable, and perhaps more startling, the company views this as being possibly the biggest security hole on the Internet today. That 80 figure is based on Trusteers installed base of over 2.5 million online banking users of the companys security service. The penetration of Adobe Flash and Acrobat is unparalleled, a spokesperson for Trusteer tells WebProNews.