IBM is the second company in two days to suggest that the number of computers infected by the Conficker.C worm may be higher than previously thought.

Microsoft warned Thursday that hackers are actively exploiting a software vulnerability in PowerPoint, the company's presentation application.

The high-stakes, but still under-the covers battle by IBM to take over Sun Microsystems is still in play, but IBM may be rethinking what it is willing to pay for the enterprise vendor.

Two U.S. senators are proposing legislation that would give federal officials significant new authority to create and enforce data security standards both for government agencies and key parts of the private sector.

The Conficker worm may have infected more machines than previously thought, according to Internet infrastructure provider OpenDNS.

Forrester Research is now predicting that U.S. IT spending will drop by 3.1 percent this year, shattering its previous projection of a 1.6 percent increase.

An expected activation of the Conficker.c worm at midnight on April 1 passed without incident, despite sensationalized fears that the Internet itself might be affected, but security researchers said users aren't out of the woods yet.

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Global IT spending is expected to decline nearly 4 percent in 2009 over the previous year as industry watchers confirm the current recession will see more losses than the dot-com bust in 2001, Gartner reports.

China on Tuesday denied suggestions it could be involved in a cyberespionage ring that attacked computers worldwide from servers mostly based in the country.

Google's search rankings are being stuffed with links to fake security software that purports to remove Conficker, a widespread worm that's currently the Internet's No. 1 security threat, but doesn't.