Many anti-virus products — particularly the “Internet security suite” variety — now ship with various Web browser toolbars, plug-ins and add-ons designed to help protect the customer’s personal information and to detect malicious Web sites. Unfortunately, if designed poorly, these browser extras can actually lower the security posture of the user’s system by introducing safety and stability issues.
The last time I caught up with security researcher Alex Holden
, he was showing me a nifty way to crash IE6
and prevent the user from easily reopening the badly outdated and insecure browser version ever again. Just the other day, Holden asked me to verify a crash he’d found that affects users who have Trend Micro Internet Security
installed, which installs a security toolbar in both Internet Explorer
-based browsers on Microsoft Windows