Most people never see malware—but after decades of testing it, I can show you exactly what it looks like.

WASHINGTON -- Microsoft Corp., whose popular Windows software is a frequent target for Internet viruses, is offering a free security program to remove the most dangerous infections from computers. The ...

Microsoft Thursday released a free trial copy of anti-spyware software it purchased last month, marking the company’s entry into the fast-growing market for products that block surreptitious snooping ...

An antivirus utility that only defends against viruses would be nearly useless. Computer viruses are just one type of threat, and not a common one at that. A proper antivirus program defends against ...