Security researchers say they're starting to find flaws in Microsoft's latest major update for Windows XP.
Last week, German company Heise Security announced that two flaws could be used to circumvent the new warnings that Windows XP Service Pack 2, or SP2, normally would display about running untrusted programs, potentially giving a leg up to a would-be intruder's attempts to execute code on a victim's PC.
And more revelations about vulnerabilities are on the way, Thor Larholm, senior security researcher with vulnerability-assessment company PivX Solutions, said. Larholm has been looking for holes in the security of SP2 since the update was released and has notified Microsoft about several issues but he would not discuss the details.