Signal bought advertising space on Instagram and showed visitors ads full of the characteristics that were used to target them. Signal tried to demonstrate that Facebooks own tools have the potential to divulge what is otherwise unseen. Signal has never shied away from criticizing other companies it thinks are compromising users privacy or security. The company says that it keeps minimal records about its users and all Signal messages and voice calls are end-to-end encrypted. The very different ways these two companies deal with user data while being active on the same playing field.”]