Windows XP is Extinct -- So Why Are So Many Companies Still On It?

The latest security risk to computers running Windows XP highlights the dangers to supply chains that continue to rely on that obsolete operating system.

Less than a month after Microsoft announced that it was no longer supporting Windows XP, the company warned of a security gap in Internet Explorer that could allow hackers to take control of infected computers. The risk was so high that Microsoft back-pedaled on its vow to abandon XP, and issued a patch.