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Facebook to Notify Users Who 'Liked, Reacted' to Harmful Coronavirus Misinformation

To try and set the record straight, Facebook is going to notify affected users with a link to a World Health Organization website debunking myths concerning COVID-19

 & Michael Kan Principal Reporter

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If you ever interacted with dangerous coronavirus claims on Facebook, the company is going to message you with information debunking the falsehoods. 

In the coming weeks, “We’re going to start showing messages in News Feed to people who have liked, reacted or commented on harmful misinformation about COVID-19 that we have since removed,” the company said on Thursday. 

The “harmful misinformation” concerns falsehoods about COVID-19 that could get you injured or killed. “Examples of misinformation we’ve removed include harmful claims like drinking bleach cures the virus and theories like physical distancing is ineffective in preventing the disease from spreading,” the company said. 

In addition, Facebook has been cracking down on outlandish falsehoods that claim 5G cell towers are responsible for creating the virus. In the UK, more than 50 cell towers were vandalized this past weekend with carriers blaming it on the 5G-coronavirus conspiracy theories. 


Example of the message.

To try and set the record straight, Facebook is going to notify affected users with a link to a World Health Organization website debunking myths concerning COVID-19. 

“We want to connect people who may have interacted with harmful misinformation about the virus with the truth from authoritative sources in case they see or hear these claims again off of Facebook,” the company added. 

That said, Facebook provided a sample image of the message, and it appears to be more of a subtle nudge than an outright warning about the need to avoid COVID-19 falsehoods. (Facebook may have done this to avoid entrenching the person's belief in the misinformation.)

So far, Facebook says it's “removed hundreds of thousands of pieces of misinformation that could lead to imminent physical harm.” For more benign COVID-19 misinformation, the company has been using third-party fact-checkers to review the questionable content, which can result in Facebook reducing the post's distribution, and placing a warning label with more context. 

“During the month of March, we displayed warnings on about 40 million posts related to COVID-19 on Facebook, based on around 4,000 articles by our independent fact-checking partners,” the company added. “When people saw those warning labels, 95 percent of the time they did not go on to view the original content.” 

For authoritative, evidence-based information on the virus, Facebook has created a dedicated “COVID-19 Information Center” to help users stay informed about the pandemic. 

“To make it easier for people to find accurate information about COVID-19, we recently added a new section to our COVID-19 Information Center called Get the Facts,” the company added. “It includes fact-checked articles from our partners that debunk misinformation about the coronavirus.”

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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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