[jps359]

If you knew someone in particular worked as a member of the CIA/NSA or as a politician, couldn't you (possibly unknowingly) sell their personal browsing history to a foreign adversary (and give that adversary leverage over the individual)?

[wfo]

Or someone who is a sysadmin and works on the power grid, or someone who is a technician at a huge datacenter, or someone with admin rights on the corporate network of Boeing, Lockheed, or, or...