Martin Lewis was left in a "cold fury" after hearing how a retired teacher lost £125,000 in an online Bitcoin scam.
During a heartbreaking interview, Theresa Jackson appeared on Good Morning Britain as she spoke about "investing" in the cryptocurrency after seeing an advert online, which had used illegally Bear Grylls face.
The fraudsters claimed the celebrity had "made his fortune on Bitcoin trading" and she ended in debt.
The Money Saving Expert, 49, who has been presenting GMB this week, issued High Court proceedings against Facebook for defamation in 2018 after 1,000 scam ads abusing his name or image appeared on their website in a single year.
Martin settled the lawsuit after Facebook agreed to donate £3million to an anti-scam charity. The social media site has also since launched a new scam ads reporting button.
Theresa has spotted the advert online with Bear Gryll's face and decided to invest, initially lured in with £250 and was given a fake advisor, who lied about how well her investments were doing.
Gradually, she invested thousands in the scam and when she wanted to take the money out, she was charged with an additional fee and had to borrow money from a friend in order to do so.
"They were just milking you for money and you couldn't withdraw," host Susanna Reid said.
"The thing is, not only did you lose a huge amount of money - £125,000 in all - but it's damaged the bond you have with friends and family, which must have had a massive impact on your support system and your mental health."
Theresa replied: "Yes, absolutely. The friend that lent me the money - I think it affected our relationship after. It's very hard, with my daughters it was hard because they tried to advise me."
"I'm sitting here in a cold fury, if I'm honest, as I listen to this," Martin said after hearing the teacher's experience.
"Can I just say to you - you said it was astonishing. It's not for me - I had someone lose £100,000 this weekend, I had someone lose £200,000. I cannot tell you how many people there is in your position.
"But you are so brave because people won't talk about it because it damages their financial health and their mental health when they talk about being scammed and you are wonderful for coming on to talk about it and spread the message.
"So a personal thanks from me. It's really appreciated."
Theresa has managed to get half of the money back after her bank helped, but is still trying to get the rest.
Martin also warned that we have an "epidemic of scams" that aren't policed.
*Good Morning Britain airs weekdays at 6am on ITV
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