For this there are accessories like Maclocks Macbook. This is a device that allows us to tie the Macbook with a bow on either side. The company recently announced the launch of a new lock and security cover.
The new accessory is a cover that is placed on top of the Macbook Air and it has a plug to put the lock there. Thus, once the lock is in place the cover can not be removed without ruining the MacBook Air, so it becomes something completely useless for anyone looking to rob us.
The new cover will be released in two models, in order to be used on both the MacBook Air 11.6-and 13.3-in. Prices are 80 and 50 dollars respectively, but as this is a new release are offering and can pre-order both for $ 75.