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WhatsApp itself has said, since the start of last year, it will not charge its customers, and Facebook relies on keeping its service free to users.

If you have received one of these messages, delete it and ignore it instead of passing it on, experts have warned.

There doesn't seem to be any danger to those participating in the hoax, except for wasting their time.

With more than 1 billion monthly users, WhatsApp provides a precious service to people all over the world, keeping them in touch with friends and family.

The social network said it was "very cautious" about removing political speech.

The details emerged as the Home Affairs Committee grilled Facebook, Google and Twitter on what they were doing to combat hate speech.

MPs said the firms had made progress but were still not doing enough.

Google promised an annual transparency report on the issue. Facebook and Twitter said they were looking at a similar course of action but did not commit to it.

On Britain First, a far-right group, Facebook's director of public policy Simon Milner said it was reviewing its future.

Chamath Palihapitiya, who worked as Facebook's vice president for user growth, was speaking at an event run by the Stanford Graduate School of Business on 10 November in which he described feeling "tremendous guilt' in helping the company attract two billion users.

His comments echoed remarks by Sean Parker, one of the early pioneers of Facebook, who spoke on 8 November, saying the social network provided "a dopamine hit and a social validation feedback loop, that exploited a vulnerability in human psychology."

The BBC showed a scary example of what can happen. A young woman who works as an internet safety campaigner posed as a 14-year-old girl to find out what occurs when a young female goes online using one of these streaming services.

Facebook has blocked the sale of a pack of Christmas cards featuring a robin redbreast because of its “sexual” and “adult” nature.

The artist, Jackie Charley, said she “could not stop laughing” when she discovered the reason the social media company would not approve the product last month.

The bird, with its distinctive red and orange breast, was one of three designs painted by Charley of animals in the snow for the set. The others were a stag and a squirrel.

In the most recent development, it looks like Facebook has quietly removed the Ticker, the box that used to appear to the right of your News Feed to summarize what all your friends have been liking, commenting on, and generally doing on the social network.

Facebook is trying to get its users talk more about themselves in between all their link shares, photos and videos.

Its newest feature for web and mobile called "Did You Know" asks you random questions to tease out info you might never willingly tell anyone yourself.

You'll find the new section when you visit your profile page, waiting for you to answer a few fun (perhaps silly) questions like who your favorite superhero is, your favorite sport, hidden talent, what day of the week you'd rather be and what your absolute dream job is (Friday and astronaut, of course.)

The social network has previously said as many as 126 million Americans may have seen content uploaded by Russia-based agents over the past two years.

It is building a tool to let people see whether they had followed now-deleted pages made by the Russia-based Internet Research Agency.

The tool will be launched in December.

The Internet Research Agency was behind hundreds of Facebook, Instagram and Twitter accounts and posted thousands of politically-charged messages.

Over the past three years, he helped Facebook try to crack the middle school market with apps like the now defunct Lifestage.

But in August he switched sides, leaving to go work for Google. Yet his arrangement hasn’t stopped the now-21-year-old Sayman from tinkering with apps during his off-hours.

Facebook, being the most prominent social network on the web, has developed tools to prevent such content from spreading and get removed as soon as possible.

Earlier this year, Facebook implemented a photo-matching tool in the US to stop sharing of content tagged as revenge porn in the past. Now, the blue network has come up with a new tool that would prevent a person from uploading revenge porn in the first place, according to an ABC report.