[...]
The public charging stations could be a conduit for bad actors to introduce malware onto personal devices, officials warn.

"Avoid using free charging stations in airports, hotels, or shopping centers," the FBI Denver said. "Bad actors have figured out ways to use public USB ports to introduce malware and monitoring software onto devices. Carry your own charger and USB cord and use an electrical outlet instead."
[...]
While officials did not offer statistics about the prevalence of juice jacking, people have increasingly suffered from cyber-theft in recent years. Americans lost $10.3 billion to a wide variety of internet scams last year, according to an FBI report released last month.