Is there a work around for attacks turning off Phishing Protection using the bug in Microsoft Internet Explorer?  I have Norton Internet Security (up to date) on a Windows XP work station tied to a very high speed internet connection.  The default browser is FireFox, but the system also has MS-IE installed - both current versions.  Regular weekly virus scans and daily quick scans do not reveal any threats.  However, attackers have twice (2) breached the firewall using a technique of bringing up an MS-IE window to turn off Phishing Protection.  If I manually turn Phishing Protection back on during the attack, the MS-IE window will go away and disk access halts.  During the attack, all disks become active including an external bank of USB drives.  Does anyone have any work arounds for this problem?