Observing someone by chance in public is protected. Stalking them is generally a crime, although jurisdictions differ in their inclusion of surveillance (withou

Observing someone by chance in public is protected. Stalking them is generally a crime, although jurisdictions differ in their inclusion of surveillance (without contact or purpose) only as a form of stalking. Generally speaking, if someone is following you around everywhere, a reasonable person will start to fear for their safety and criminal codes seek to protect people from that. While not as immediately threatening, realizing that a company is maintaining a large dossier about you may cause some concern about how they will utilize that (obviously against your undisturbed behavior). It is reasonable to be concerned about that usage and intent.