Weeks passed. The lock icon in her menu bar was now a little familiar companion. When she wrote letters to people she’d lost friendship with, the app nudged: “Consider sharing for a limited time.” When she began drafting a novel about a lighthouse keeper who encrypted his map, Ecrypter offered a folder labeled Drafts—encrypted by default, unobtrusive as a bookmark. It never read what she wrote; it only watched for patterns—how often she opened a file, whether she renamed a folder “Do Not Share.” It learned what to hide and what to show.
Enter .
