From the recent report about the amount of vulnerabilities of last year, it seems that Linux and Mac OSX are likely to be more vulnernable than Windows OS is as if Apple needs to wake up to their senses in improving their security for their operating systems like IOS, Mac OSX, etc. and it seems that Apple is not the only one doing so with the introduction of Kill Switch program for smartphones and tablets according to some upcoming law being made in the US that allows for theft prevention. Why does it look like Apple needs to wake up to their senses? It may be due to the fact that the security is weakened for Mac OSX Yosemite that makes the OS more vulnerable to theft and illegal access by criminals and Apple has to do something to prevent that from happening.
For folks with privacy concerns about this program, the security for this is more improved so that there's no way that the IOS devices cannot be snooped illegally even if they are powered off once this program is installed. Hopefully, it should be a good law and program that improves the security. Other companies include Microsoft and Google but I don't know if Mozilla, Blackberry, Canonical, Silent Circle, etc. will have this similar program as well that will improve this security.
Even with improved hardware security such as the phone encrption that prevents illegal snopping, it may be best that you should take care of your belongings like your IOS device if you don't want to be the victim of the theft since prior to the inclusion of this program, the difficulty of retrieving back your IOS 8 device may be tough should some thief take it away. This pretty much applies to Android devices but I don't know if the Windows Phones running Windows 10 will have the same amount of security as IOS 8 and Android 5.0 as well.