My worry is still web vulnerabilities, opsec opening a malicious pdf on their main machine or a malicious website the one time all their sensitive info compro

My worry is still web vulnerabilities, opsec opening a malicious pdf on their main machine or a malicious website the one time all their sensitive info compromises their main gmail/apple account How is it even possible to help our extremely vulnerable elderly parents and then our very young family members, nephews, nieces We've probably all been pwned at least once, and we're the more cautious/aware of the population, how do the helpless even fare? Besides locking them down in the apple eco and idk vetting every file/website they use?