As a result, people can think they are clicking on the play button on a video posted by a friend, but they are really clicking on a hidden link.
They are then often redirected to other pages which ask for personal information, sometimes in the form of a "competition". The scam can expose victims to malicious software and use their profile to spread the scam.
According to NetSafe, Facebook users should beware of suspect or "goofy" posts from anyone. If a video looks like something someone would not normally post, people should not click on it. A suspicious post could be a sign their Facebook account has been hijacked.
Another way to minimise risk is to stay current on browser updates.
Another threat is versions of phishing scams, where criminals steal personal information or trick people into giving it. On Facebook, phishers can use status postings and Facebook messages from friends' accounts (which they have hacked).
They also send messages or emails pretending to be a popular app like Farmville or Mafia Wars.
Consumer Affairs urges people to report scams to scamwatch.govt.nz.
Social media scams
• Ministry of Consumer Affairs says such scams are on the rise.
• Many work off the likelihood people are more trusting of content delivered through a friend's profile.
• If a video looks like something someone would not normally post, people should not click on it, advises NetSafe.
• This year Kiwis have reported losses of close to $3 million in all types of scams.