Police in Derry are asking the public to spread the word and stop the scammers.
The advice comes following a recent spate of scams reported in the area.
The most frequent type of scam fools the caller into thinking that they are being contacted by an internet provider representative who requires access to their computer or laptop to “fix a problem”.
The other notable one this week is people being threatened with arrest due to an outstanding fine or warrant.
Crime Prevention Officer Mitchel Freedman explains: “Please take this opportunity to talk to your friends and family about these scams and what they can do to protect themselves.
"Tell them that if they’re at all suspicious about a call they receive, hang up and phone the organisation the person is purporting to represent to check their authenticity.
"Ideally, make the call from another telephone so you can be sure the original caller has not remained on the line. Never be pressured into a transaction over the phone.
“Scammers are creative and will do whatever they can to con people out of money. They don’t care who their victim is and will employ whatever tactic is necessary. Guarding your personal and banking details is essential.”
Anyone concerned they have been a victim of a scam can report the matter to Action Fraud via their website www.actionfraud.police.uk or by phoning 0300 123 2040. Police can be contacted on the non-emergency number 101.
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