Islanders have lost more than £100,000 to fraud and scams so far this year.
It's the second biggest monetary loss the island has seen in the last five years.
Jersey Police have received 52 reports of fraud in 2021 - including email hacking and romance, investment, and postal fraud.
The Jersey Fraud Prevention Forum says it had reports of hackers trying to get remote access to people's computers as well as reports of postal scam texts and romance fraud through Facebook.
It is calling on islanders to stay vigilant over the festive period and to report any scams.
"As we get into the festive spirit, we understand that our guards might be down more than usual, with too good to be true deals landing in our inboxes and on our social media feeds.
"We encourage Islanders to challenge any calls or requests they suspect may not be legitimate and to report them." - Chief Inspector Chris Beechey, Forum Chairman.
A newsletter is being sent to all homes next week to raise awareness about the latest fraud and scam attempts.
Anyone who has lost money because of fraud is being asked to let their bank know and to report it to the police by calling 612612.
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