Hackers are exploiting the just-disclosed unpatched bug in Internet Explorer (IE) to launch drive-by attacks from malicious Web sites, security researchers said today.

Microsoft on Sunday confirmed it's investigating an unpatched bug in VBScript that hackers could exploit to plant malware on Windows XP machines running Internet Explorer (IE).

Microsoft today announced that it will issue an emergency security update for Internet Explorer (IE), but postponed setting a ship date for the fix until tomorrow.

Hackers exploited an unpatched vulnerability in Microsoft's Internet Explorer (IE) browser to break into some of the firms targeted in a widespread attack that compromised Google's and Adobe's corporate networks last year and earlier this month, McAfee said today.

Yahoo was one of more than 30 companies hit by a sophisticated online attack from China, designed to steal intellectual property and collect information on Chinese dissidents, several news sources reported Thursday.

Nearly a week after an unidentified hacker posted attack code that exploits a flaw in Adobe's Illustrator software, the company says it will fix the issue by Jan. 8.

Adobe is investigating a critical vulnerability in its Flash format that is currently being exploited by hackers using malicious PDF documents, according to the company's security team and outside researchers.

Microsoft confirmed another zero-day vulnerability on Monday in a set of software components that ship in a wide variety of the company's products.