In a moment of distraction, I fell for a phishing phone call and compromised my Google account. It took me 13 minutes to realize how catastrophically stupid I am and begin frantically changing passwords. I've run the official Google "secure your account" process probably 10 times (though 9 of those times there was nothing to do). I've checked all my financial info, changed passwords on all sorts of things. As far as I can tell, other than gaining access to my Gmail, I don't think anything else was compromised.

How boned am I? I've got 2FA on basically anything remotely important, and I've had decent password hygiene (although I do use the Google password manager, so that's probably comprimised). Is there something else I should do or be on the lookout for?

First, let me just say that I'm tech savvy, but I'm self taught for the most part. I never studied cybersecurity or network security. I know the basics, but not the nitty-gritty.

I used to host my own Anytype Server (note taking app) on my raspberry pi. To do this, the documentation says that I need to open two ports, one TCP and another UDP. So that's what I did, and had it set up this way for a while now.

Yesterday though, my raspberry's microSD died. So while I wait for the new one to arrive, I'm taking the chance to review my home network settings.

I closed off a third port that I had for my synology server (for the OpenVPN). I am now using Wireguard (with Tailscale) which doesn't require opening ports. And since my raspberry is offline, I also turned off the other two ports (as of now, I have none opened)

So here's the thing: I remember from my searching that a lot of people are strongly averse to opening ports. Iirc, the basic idea is that if a bad actor knows my home IP and which ports are open, they can enter. So, in theory, a hacker could potentially infiltrate my raspberry pi - and from there potentially wreak havoc in my other devices.

So my questions are:
1- Is it really like that? Could a hacker gain unlimited access to my raspberry via an opened port?
2- If yes, is there something that I can do to strengthen my raspberry pi security?
3- Am I being overly paranoid by worrying about this, even if it’s theoretically possible?

Any clever ways to connect to the Internet safely to update drivers, security, etc? I'd only want to connect to Intel, AMD, Microsoft, etc, and then would physically disconnect the lan card. I know, dangerous, but I'm trying a piecemeal approach with a flash drive and getting mixed results. I tried to update to Service Pack 2, and it bricked the computer on restart, back to flashing Vista.