Trillian, a popular all-in-one instant messaging suite that handles AOL IM, Yahoo, MSN and even Internet relay chat (IRC) communications, has issued an update that corrects at least three very serious security flaws in the program. The vulnerabilities, found in both the Pro and Basic (free) versions of Trillian, earned a “highly critical” rating from vulnerability watcher Secunia. Trillian users should update to version 3.1.10.0, which patches these flaws.