Provincial police say fraudsters are pulling at grandparents' heart strings.
The latest incident happened Sunday in Listowel, when a couple received a phone call from someone they thought was their grandson.
The impersonator told them he had been in a car crash out-of-province and needed cash to get out of jail.
The problem is, it wasn't their grandson at all - and OPP say this isn't the first time someone has used that story to get people to send money.
Police are reminding you to never send cash or give personal details to someone over the phone if you aren't 100 per cent sure they are who they say they are.
If you've been scammed, report the incident to police and the Canadian Anti-Fraud Centre immediately.
You can see full tips below.
• Never send money or give credit card, online account details or copies of personal documents to anyone you don't know or trust and never by email.
• Avoid any arrangement with a stranger that asks for up-front payment via money order, wire transfer, international funds transfer, pre-loaded card or electronic currency. It is rare to recover money sent this way.
• Seek advice from an independent professional such as a lawyer, accountant or financial planner if in doubt.
• Do an internet search using the names or exact wording of the letter/email to check for any references to a scam - many scams can be identified this way.
• If you think it's a scam, don't respond - scammers will use a personal touch to play on your emotions to get what they want.
• Remember there are no get-rich-quick schemes: if it sounds too good to be true it probably is.