Is this the downfall of the tech barons? The arrest of Russian messaging billionaire Pavel Durov has struck a blow against the power of big tech. Some hope this will be the start of a huge transformation.
Billionaire with 100 children charged

Glossary
Telegram - Today: an encrypted instant messaging app. In the past: a message sent via electric wires and delivered as a printed piece of paper. As every word was expensive, making the message as short as possible became an art. A famous joke telegram sent from Venice read, "STREETS FULL OF WATER PLEASE ADVISE".
Trial - A trial is where two people or two groups of people argue in a court.
Encryption - A way of scrambling data so that only certain people can understand it.
Meta - The new name of the company which owns Facebook and Instagram.
Censorship - Preventing or stopping speech, writing or communication that is considered harmful or "inconvenient".
Whistleblower - Someone who exposes secretive behaviour by a group or organisation; once used to describe police who blew whistles to signal the scene of a crime.
Human rights - The basic rights and freedoms that belong to every person in the world, from birth until death. They apply regardless of where you are from, what you believe or how you choose to live your life. Some have called for animals and even natural phenomena like rivers to have some form of human rights.
YouGov - A British public opinion and polling company. It was co-founded by Nadhim Zahawi, a Conservative Party politician.
EU - European Union. An economic and political union of 27 countries.