Juice jacking is an attack where an attacker tampers with a public USB charging station so that connecting a device triggers data exfiltration or malware transfer. USB ports carry both power and data simultaneously — this dual function is exploited. Countermeasures are simple and effective: use a USB data blocker (also called a USB condom), charge via your own power adapter at a wall outlet, or use a power bank. In your ISMS, this topic belongs in awareness training, especially for employees who travel. A clear policy on using foreign USB ports significantly reduces the risk.