What concern arises from digital security and privacy issues?

The correct answer highlights a major concern related to digital security and privacy issues: the selling of data leading to privacy problems. In the digital age, personal information is continually collected by various entities, including corporations and websites. This data can be sold to third parties, resulting in individuals losing control over their personal information.

This concern encompasses issues such as identity theft, unauthorized use of personal data, and the potential for misuse of information in ways that intrude on personal privacy. As consumer data becomes increasingly commoditized, individuals may suffer from a lack of transparency about how their data is utilized, leading to feelings of exploitation and vulnerability.

The other options touch on relevant aspects of digital security and privacy but do not encapsulate the specific concern tied to the selling of data. For instance, while internet crime and cybersecurity measures indeed pose threats, they are broader in scope. Similarly, regulating content on social media pertains to the management of information rather than the privacy of personal data itself, which is the crux of the concern addressed in the correct answer.