The cheerleader video scam that I showed you above feels very much like a stupid video that would make its way around Facebook. The only difference is that when you click the link, the scammers will try to steal your personal information and download malware to your computer.
How do you stay safe? Trust sites, not people. If someone was to get infected by YouTube Extreme's malware, then they'd probably be forced to post the fake video link to their Facebook feed.
If everyone on their feed knew to avoid links like that, then the hackers would be stopped in their tracks.
Staying safe can be as simple as keeping your friends and family up to date on the latest scams and security threats.