What is the risk of using USB chargers in public places?

Using USB chargers in public places presents a significant risk due to the potential for malware installation on your device. Public charging stations can be manipulated by individuals with malicious intent, allowing them to access and compromise connected devices. This form of attack is often referred to as "juice jacking," where the charger can transfer harmful software to a device while simultaneously charging it.

While the other options represent potential issues one might face with public chargers—such as the possibility of them not working effectively or charging your device more slowly—they do not capture the serious security threat posed by malware. The risk of compromising sensitive personal information or data through malware is a crucial factor to consider when using public charging facilities.