I'm so sorry to hear this. The best thing you can do is help to educate people, maybe create an organization that can work with other organizations to target youth and senior knowledge. Before they passed both my grandmothers had seen many similar scam efforts that targeted them. One of my grandmothers was way too knowledgeable and crafty to fall for it, even pleas like, "Grandma, I'm in jail and need help..." absolutely failed in practice. For better or worse, my other Grandmother had been scammed a couple times and towards the end of her life didn't have the finances to scam any more from, living with my mom and her sisters.
Unfortunately the scams themselves range from amazingly complex to what should be really easy to spot. I make it a rule to NEVER give personal information to someone that calls me unexpectedly, at least nothing that isn't already effectively public information. Annoying when your doctor's office has an automated system that calls and the first thing it does is ask for your social security number... My response is "nope, not doing it" and that's what I told anyone that would listen at that office every visit... it's training people to get scammed.
Unfortunately the scams themselves range from amazingly complex to what should be really easy to spot. I make it a rule to NEVER give personal information to someone that calls me unexpectedly, at least nothing that isn't already effectively public information. Annoying when your doctor's office has an automated system that calls and the first thing it does is ask for your social security number... My response is "nope, not doing it" and that's what I told anyone that would listen at that office every visit... it's training people to get scammed.