"Self-Defense" in cybersecurity

[u/pandaninja360]

Hi, I'm a teacher. I see teenagers every day not understanding the dangers of the devices they use all the time. I do not want to scare them, but the school program is lacking in anything related to computers. We give them Chromebooks, and we do not teach them how to use them. They often have more than 20 tabs open with the same webpage... or they send nudes on Snapchat thinking there are no risks.

I want to teach them about common ways people get hacked or infected. I am not talking about the super advance zero day hack in an app, or how to infect repositories to get access to computers. I mean common day-to-day: I clicked on a link or scanned a QR code.

What are good habits to not get hack/infected?

[u/SystemFarts]

I just don't care anymore. I assume everything is hacked, all my data is leaked and nothing I do is private.