Answer:
All of the options listed can be potential internet security issues, but if I had to choose one as the most general and overarching issue, I would say B) Harmful programs, or spyware, getting loaded onto a user's computer by visiting infected websites. This is because spyware can lead to various security issues such as stealing sensitive information, tracking online activity, slowing down computer performance, and even taking control of the device. However, it's important to note that all of the other options can also pose significant security risks and should be taken seriously.: