Around 7.8 million UK adults used online dating sites in 2016, up from just 100,000 in 2000.
The female profile is in her 20s (29 was the most common age), and also has a high income.
She presents herself as a student, also with a degree and no interest in politics.
She is 5’6”, has never been married, and has long brown hair and blue eyes.
Photos used are often selfies of her wearing skimpy vest tops showing lots of cleavage.
One of the most common techniques is to build up trust with the person by messaging for weeks or even months before suddenly having an emergency - the fake person being mugged but their daughter needing urgent surgery, for example - and asking for money.
But then they suddenly need money for rent too, then food, then medical fees, and it can quickly escalate.
And a lot of the time, you’re not just talking to one person behind each profile - you could be exchanging messages with a circle of fraudsters acting together, according to KIS Finance.
Serious fraudsters sometimes even create further fake profiles and use them to be rude to you, all to make the main fake profile seem more desirable.
If you’re suspicious, turn to Google: search their name and “dating scam” or do a Google image search to see whether they’ve taken someone else’s picture or one that’s easily available online.