Big Tech indulges in encryption of communication to protect the privacy of users’ data. However, the Governments are insisting on having the decryption keys on the ground of national security.

Apple has Advanced Data Cover for 14 categories of data. In addition, it has announced user protection through end-to-end encryption for 9 more categories of data on iCloud, e.g., photos and backup notes. Google too is testing end-to-end encryption for its Messages app for group chat. Twitter too is contemplating encryption for direct messages between users.

There are two grounds for Governments opposition to encryption. The first is national security and the second for investigation into criminal matters. In fact, the government agencies insist on having decryption keys to unscramble a message. Big Tech says even it does not have control over keys. In the absence of keys, unscrambling a message may take years.

Even if encryption is kept intact, it is possible to provide information such as the name of the suspect, the date on which the service started, last seen date, IP address, device type, email identity, contacts etc.

Experts hold that the origin of the messages can be traced through source code.

Many firms provide just communication services, and are not licensed services. They are add-on services. Here the government control is exercised through blocking the account, switch off of the internet service, removal of content by direction. It is a moot point whether they can be compelled to break encryption. Of course, the governments can seek assistance and co-operation.