The US Department of Homeland Security’s Computer Emergency Readiness Team (US-CERT) recommend users uninstall Apple’s QuickTime for Microsoft Windows.
Apple will no longer be issuing security updates for the product on the Windows Platform and unpatched vulnerabilities could be used to remotely compromise Windows computers.
Read more:
Remove Apple QuickTime from your PC now, warn security researchers and US government
Urgent Call to Action: Uninstall QuickTime for Windows Today
Uninstall QuickTime 7 for Windows