A WhatsApp scammer was left triggered after the victim replied with a very sassy comeback.
In recent weeks, thousands of Brits have been cheated out of their hard-earned cash after falling for fraudsters over online messages.
One of the main scams around right now has seen scammers impersonate people's children and pretend they have a new number in a bid to steal some cash.
The fraudsters come up with a fake scenario that sees them ask the parents to transfer some money over.
As a result, it can sometimes be weeks before the victims end up realising they've fallen victim to the scam and lost thousands of pounds in the aftermath.
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But now people are starting to notice when a scammer is preying on them.
According to former journalist Greg Flucker, his dad was recently approached by a scammer on WhatsApp who posed as Greg.
The scammer wrote: "Hi dad, my new phone has arrived. You can save this number!! [...] And you can delete the old number."
However, Greg's dad - who was clued-up about the situation - was sat next to him when he received the text message.
He responded: "Funny that - my only child is sitting right next to me and he told me to tell you to f**k off."
The WhatsApp fraudster was left triggered by the reaction, writing back: "People like you need to die I'm sorry that I text the wrong number why you need to tell me to f**k off."
Greg's dad continued: "Because you're scamming honest people for their cash. Peace"
"Scamming?" the scammer asked, innocently.
Greg later said: "Horrible people! They don't like a taste of their own medicine clearly."
WhatsApp has now partnered with National Trading Standards to raise awareness of this type of fraud.
It comes as worrying research shows more than half (59%) of people have received a message-based scam in the last year or know someone who has.
The "Stop. Think. Call." drive aims to help educate people on how to protect themselves and their WhatsApp account from message-based scams.
Kathryn Harnett, policy manager at WhatsApp, said: "WhatsApp protects our users' personal messages with end-to-end encryption, but we want to remind people that we all have a role to play in keeping our accounts safe by remaining vigilant to the threat of scammers.
"We advise all users never to share their six-digit pin code with others, not even friends or family, and recommend that all users set up two-step verification for added security.
"If you receive a suspicious message (even if you think you know who it is from), calling or requesting a voice note is the fastest and simplest way to check someone is who they say they are. A friend in need is a friend worth calling."
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