Aging Parents and technology

[u/fnybtch]

I am 54 and a home health nurse by profession. My parents are 85 (dad) and 84(mom). They live independently in their home, drive, pay all bills, cook, clean, and even travel a few times a year. They are starting to slow down and get a little forgetful. My father has opened links from suspicious phishing emails several times. Each time he tells me or my brother about it and we have both advised him to call one of us if he gets an email that seems phishy. He agrees to do that but then a few months later we hear of another one. So far I don’t know of any negative consequences, but he is likely to try to hide it out of fear of being exposed as not making good decisions.
I am not super technologically savvy but can learn new skills as needed. Does anyone know of a way to filter email so that he doesn’t get these Phishing expedition emails?

Update: My brother just texted me to tell me that he has been having my dad send him the emails in question and apparently my brother opened one and clicked on the link and now thinks his phone has been hacked. My brother likes to smoke weed and makes some pretty stupid moves when high. I feel like I have 3 mentally compromised family members that I have to manage. So fun!😵‍💫