There are two types of victims - the people who are duped into trusting someone with a false identity, and those who have their personal photos stolen and used by someone that isn't them.
Here are some of the most recent cases of catfishing: The fake accounts are often used to spark up online relationships.
They make up life stories and use photographs of unsuspecting victims to create fake identities.
Catfishers add life experiences, jobs, friends and photographs to the fake accounts.
' Catfishing' is when someone creates fake profiles on social media sites to trick people into thinking they are somebody else.
It is most common on social media and dating apps like Tinder.
And it’s not just particularly vulnerable people who fall victim either.
After becoming suspicious Schulman drives to "Megan's" address - and finds Angela, who admits she was behind the account all along.
At the end he tells a story about how live cod were shipped along with catfish to keep the cod active and ensure the quality of the fish.
Unknowing victims will fall in love with women or men they meet online - with no idea the person behind the screen is someone completely different.
Catfishers use the accounts to give off a persona they wish they had - with plenty of friends, photos and attractive qualities.