encryption
noun
The scrambling of information so that it can only be read by someone with the right key or password.
'End-to-end encryption' is the phrase in the news: only sender and receiver can read the message. The verb is 'encrypt'.
Related words
bluetoothA technical standard that lets nearby devices connect to each other without wires.algorithmA sequence of step-by-step instructions for solving a problem or performing a calculation.notificationAn alert or message that a device or app shows to tell you about something, such as a new email or update.databaseAn organized collection of information stored as linked tables and other objects such as queries, forms, and reports.shortcutA quicker route between two places than the one most people take.serverA computer or program that supplies data or services to other computers or programs, often across a network.