Microsoft's Windows 8 is reported to come with a "killswitch", which can by flipped by Microsoft to delete malware downloaded from its App Store by unsuspecting customers. Last year, Google's Android Marketplace was swarmed by malware disguised as popular applications from various other publishers. These applications were bought and downloaded by unsuspecting users. When word reached Google, it flipped a killswitch with Android that instantly removed these bogus applications across thousands of devices. It's not just Google, Apple too has a similar killswitch with which it keeps its App Store users safe from malware.

News of killswitches with Windows (in-turn the PC platform), isn't going in too well with advocates of privacy and free-speech, who fear that Microsoft's planted killswitch gives it unwarranted power to remotely erase applications and user data (connected to these applications), without the consent of the user. It could then be used as a potential censorship tool, or even an anti-competition tool, by synthetically-engineering market-shares of software used by people.