Secure messaging app Signal has received a boost from one of the titans of tech, as Elon Musk tells his Twitter followers to “use Signal.”

Signal exists in the same space as WhatsApp and Telegram. The app provides end-to-end encrypted chat and voice calls, and is widely considered one of the most secure communication methods on the planet. In fact, the EU commission, US Senate and some military units all recommend their members use it.

While WhatsApp may be more popular, there have been growing concerns regarding its security and privacy. Most recently, WhatsApp announced a changed to its privacy policies, wherein it will share significantuser data with Facebook and other Facebook companies. Needless to say, this has not gone over well with users who value privacy and security.

Elon Musk is the latest to come out in favor of WhatsApp’s more secure alternative.

Use Signal

— Elon Musk (@elonmusk) January 7, 2021

Facebook has shown a repeated lack interest or ability in protecting people’s privacy. Using WhatsApp for secure communication is the equivalent of having the fox guard the henhouse.

For any individuals concerned with privacy and security, Musk is right: Use Signal.