Have you seen the post on Facebook that claims to link to a video message that Robin Williams made before his death? Don’t click on it. It’s a scam.

According to Symantec, the post was created by scammers looking to profit on the actor’s death.

When you click on the link, you’re asked to share the link and fill out a survey before you can view the “video.” Filling out the survey generates revenue for the scammers and, as you might expect, there is no video.

According to Symantec, the video has been shared over 24 million times on Facebook.

The post is another example of “social engineering,” the technical term for manipulating people into clicking malicious links, the security company said. Here are a few tips:

1. Be skeptical of links shared by friends
2. Don’t click on a URL from a strange domain name
3. Don’t share a Facebook link without knowing what it is first