Proactive threat protection not updating
The fact that Microsoft is not maintaining the XP file system (NTFS) in the same manner as their newer OS might be the key to this issue. Details are still emerging but the official Symantec statement is in an article titled SEP 12.1 Win XP Users Experiencing Blue Screen when running Proactive Threat Protection Definitions July 11th 2012 rev 11.
In short, their Endpoint product released an update that was incompatible with other software trying to access the XP file system (including Symantec’s own PGP).
Some may also consider dumping proactive threat protection, but that’s a whole other post…
The problem affected numerous other products so it seems that this flaw was common enough to have been caught in QA, assuming they are testing for compatibility with the divergence between Windows 7 and Windows XP.
As such, the harassment is illegal – even when done by the government. Such operations also violate similar fundamental rights defined by state constitutions.
S.: the FBI, the Department of Homeland Security, U. military counterintelligence agencies, state and local Law Enforcement Intelligence Units (LEIUs), and security contractors.
It is this part of our process that we will be improving to avoid future issues.
We are currently restructuring our testing process to improve compatibility testing and will not be releasing new SONAR signatures until this new process is in place.
Nothing hurts the case for security like an outage caused by security.
The second thing that came to mind is related to the points I recently made about Windows XP file system decay.