Microsoft is attempting to plug a glaring hole in some versions of its Windows software, a weakness similar to those exploited by the devastating “Blaster” and “Sasser” attacks, a security expert says.

MICROSOFT Corporation has issued a warning that flaws in its operating system could let an attacker take complete control over a computer system.

Software giant Microsoft is warning its users that they need three security updates, including one that applies even to computers that have downloaded the company’s massive fix for the Windows XP operating system.

A mysterious internet virus being spread today by hundreds and possibly thousands of infected web sites may be aimed at stealing credit card and other valuable information, security experts warned in New York.