The reminders and warnings have been relentless for the past two-and-a-half years. Microsoft will "end of life" Windows XP, but there are significant numbers of computers and specialty devices still running the 13-year old operating system, exposing them to serious security issues down the road.
Microsoft officially ends support on Tuesday, April 8 by releasing the last security updates for Windows XP and Office 2003 as part of the April Patch Tuesday release. Any issues discovered afterwards in XP or other Microsoft products running on XP, either as a zero-day vulnerability being exploited in an attack or reported to Microsoft by a security researcher, will not be fixed. Security experts believe criminals are hoarding XP vulnerabilities with plans to launch campaigns exploiting them at a later date, since those zero days will become "forever days."