A simple, inexpensive method to add a little security
by Steven Chae on July 12th, 2014, 6:03 am PDT. This Ivia has been viewed 2,865 times. Last improved on July 12th, 2014, 2:54 pm PDT.
Garage door openers are popular and convenient but also provide a relatively easy way for scumbags to break in. Using a wire hanger or similar device, the thief wiggles it inside the garage and grabs/releases the emergency catch on the opener and voila! -- now there's only a grease spot where your $5,000 carbon fiber bike used to live.
Here's an easy remedy: thread a thin plastic cable zip-tie through the opener's catch. It will be strong enough to foil the hanger method, yet can be easily pulled apart with direct pressure in the event of an emergency/power outage.
Here's a video that provides more detail: