Back in the day, a not-insignificant number of Windows users ended up with Apple's Quicktime software installed on their computers, thanks in large part to iTunes. It's been a long time since it's been necessary for either the web or iTunes, though, and as such the software is pretty out of date -- not to mention a security threat.
According to Trend Micro, Apple will no longer be providing security updates for QuickTime for Windows. The decision is believed not to apply to QuickTime running on OS X. US-CERT warns that while computers running QuickTime for Windows ‘will continue to work’ after support ends, using unsupported software ‘may increase the risks from viruses and other threats’.
If you have QuickTime running on your machine, contact Qbit today to have it uninstalled.
‘Potential negative consequences include loss of confidentiality, integrity, or availability of data, as well as damage to system resources or business assets,’ US-CERT says.
While there are no known active attacks targeting one or other of the vulnerabilities exposed last week, there are no guarantees that criminals may not develop such attacks in future. New vulnerabilities in QuickTime for Windows may also be exposed.
As Apple notes on its support page, it's been a long time since Quicktime was necessary for iTunes -- that changed with version 10.5, which was released way, way back in October of 2011. And while Quicktime used to serve up a web video, it's similarly been deprecated and replaced by technologies like HTML 5. So for most users, there's basically no reason to have the app installed anymore. Given its status as a potential security threat and the lack of any updates coming from Apple, we'd go so far as to say you should get it off your computer as soon as possible.