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Elon Musk Tells Followers to Use Signal Messaging App Amid WhatsApp Privacy Update

Musk tweets 'Use Signal' in an apparent attempt to discourage people from using WhatsApp, which has been asking users to agree to a new privacy policy.

 & Michael Kan Principal Reporter

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Encrypted messaging app Signal is seeing a wave of new users after Tesla CEO Elon Musk told his Twitter followers to use the service. 

The flood of sign-ups on Thursday briefly caused Signal to delay sending out the verification codes needed to activate new user accounts. Nevertheless, the nonprofit behind the app said it’s ecstatic about the surge in activity. 

Hours earlier, Musk tweeted to his followers “Use Signal” in an apparent attempt to discourage people from using WhatsApp, a rival messaging app owned by Facebook. 

The tweet arrived after WhatsApp announced a new privacy policy covering how it can share user data with Facebook. The practice is nothing new, but the policy update grabbed headlines over concerns users will have almost no way to keep their WhatsApp data separate from Facebook—a company with a notorious record on digital privacy. 

On early Thursday morning, Musk chimed in by posting a meme depicting Facebook CEO Mark Zuckerberg brazenly lying to a child about the data his company can collect. 

It’s certainly easy to bash Facebook. But the company says in practice the new WhatsApp privacy policy will mean no change for users when it comes to chats with friends or family members. Instead, the update is mainly about the data businesses can store and collect over WhatsApp chats with users. 

Also, if you previously elected to stop WhatsApp from sharing data with Facebook during a one-time option back in 2016, the company says it'll continue to honor your choice.

So why is Musk telling people to try Signal? It's true that both WhatsApp and Signal provide free end-to-end encrypted messaging. This means not even the provider, such as Facebook, can read the content of your messages—only the sender and the recipient of the messages.  

However, Facebook is a business focused on mining people’s data largely for ad-targeting purposes. Signal, on the other hand, is run by a nonprofit foundation. It’s gone as far to refuse venture capital funding to prevent financial profit from driving its focus. The app has also received endorsements from NSA whistleblower Edward Snowden and Twitter CEO Jack Dorsey.  

As for Musk, he’s no fan of Facebook, and has previously said the social network “sucks.” On Wednesday, he took another shot at Facebook amid the mob violence in the US Capitol.


About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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