For users who are concerned about an unauthorized person physically tampering with a MacBook Pro, MacBook Air, or MacBook, nail polish (yes, that kind of nail polish) can offer a bit of security, or at least demonstrate potential evidence that hardware has been fiddled with.

Now of course this does not apply to the vast majority of computer users, and these type of deep security concerns are only relevant to a very small group of people. But for those where these type of worries are legitimate, then some selectively applied nail polish can offer a very low-tech…