The elder Mr. Mincey has a new car and it has more electronics on it than my Mac. Dad merely needs to walk up to the car, and it recognizes him, unlocks the door, and all he needs to do is push the Start button to start the engine.
That proximity-based technology has a similar counterpart for Mac users worried about security when away from the Mac. It’s called Keycard and it uses Bluetooth on your iPhone and Mac to lock and unlock the Mac.
Think about the ramifications of technology that knows where you are, and where you’re not, and performs specific functions based upon your location.
That’s Keycard, and there’s not much to it. Pair up Bluetooth on your iPhone or iPad to the Mac. Keycard resides in the background and locks up your Mac when you step away, and unlocks it when you return.
That means Keycard works in a similar way to office or building keycards which require enhanced security and a record of everyone who enters or leaves a designated facility.
Keycard is only as good as the user, which seems to be the place where security is always the weakest. For example, if you walk away from your Mac to hit the restroom or grab a cup of coffee, and you don’t take your iPhone, there’s no security. An unattended Mac that’s unlocked is still a security risk.
If Keycard had a built-in motion sensor that could detect when you’ve actually, physically stepped away from your Mac and then locked the doors, it would be perfect.