CEOs and celebrities and politicians are not only at risk because of their influence and insider knowledge, but they also have a huge target painted on them at all times. They simply can't keep a low profile due to their occupation. They also have money, much more than journalists and activists, so they attract "regular" criminals too.

Human right activists and journalists probably won't be their main user base but it will be the most prominent for public relations reasons, because who doesn't like human right and investigative journalism? VIPs are less marketable and let's not talk about criminals. To keep things clear, I think it is a good feature, even if it can help criminals. After all, human right activists are often technically criminals where they act.