Have you ever wonder what is actually inside Windows Xp Service Pack 2, which was released last year to patch all the security flaws found?

Microsoft security chief just revealed that SP2 for Windows XP changed or eliminated more than 400 significant features in the operating system, also eliminating two previously undiscovered classes of security flaws.

Quoted:
Speaking at the CanSecWest conference in Vancouver, Microsoft security strategist Window Snyder [apparently his real name] said the company changed or removed 428 Windows XP features considered security loopholes. 51 of them were in Internet Explorer and 107 were in Windows XP’s networking functions.

Snyder also said in the report that security firm SecurityFocus also discovered two “entire classes of vulnerabilities” that have never been reported outside the company. Snyder said the vulnerability types had been wiped out and declining to provide details.

[Source]