GrayKey, an iPhone unlocker, is secretly being marketed to law enforcement. Thanks to an anonymous source, we now know how the device works—and the danger it presents to security.

Début 2017, un chercheur madrilène a vu apparaître sur son fil d'actualité Facebook une étonnante invitation. «Connectez-vous à la communauté gay et louez des appartements à prix abordables à des gens comme vous!», indiquait la publicité colorée. Seul souci, celui-ci n'avait jamais indiqué à Facebook son orientation sexuelle. Comment une entreprise de location de vacances pouvait-elle le savoir? Et le contacter directement sur Facebook en fonction de cette information personnelle?

Avec deux autres confrères de l'Université Carlos III de Madrid, le chercheur a publié mi-février une enquête d'envergure pour mesurer si d'autres Européens avaient pu, comme lui, voir des publicités liées à leur orientation sexuelle, politique, religieuse ou à leur appartenance ethnique. Il ressort que 73% des utilisateurs européens de Facebook ont été «ciblés» par des experts en marketing en fonction de ces données dites «sensibles», avec l'aide de Facebook.

They implemented Go365, which is an app that I’m supposed to download on my phone, to track my steps, to earn points through this app. If I don’t earn enough points, and if I choose not to use the app, then I’m penalized $500 at the end of the year. People felt that was very invasive, to have to download that app and to be forced into turning over sensitive information.

We may think we get a fair deal, offering our data as the price of sharing puppy pictures. By other metrics, we are being victimized: In the largest technology companies, the share of income going to labor is only about 5 to 15 percent, Mr. Posner and Mr. Weyl write. That’s way below Walmart’s 80 percent. Consumer data amounts to work they get free.

The Shadow Brokers leak showed the NSA was tracking at least 45 nation-state hacking operations. Experts explain how the agency stepped up its monitoring.

Facebook is now so good at watching what we do online—and even offline, wandering around the physical world—it doesn’t need to hear us to know what we like. Here are some ways to limit the amount of data Facebook and advertisers are collecting about you.

When someone goes to the lengths of making counterfeits of your products, it's at least a sign you're doing something right. And it deserves a minute of flatter