According to the CRISC Review Manual1, a cable lock is a physical security device that attaches a laptop to a fixed object, such as a desk or a wall, to prevent unauthorized removal or theft. A cable lock is the best option to reduce the probability of laptop theft, as it acts as a deterrent and a barrier for potential thieves. A cable lock also helps to protect the confidentiality, integrity, andavailability of the data stored on the laptop, as well as the laptop itself. References = CRISC Review Manual1, page 253.