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What actual damage do you secure your servers against? Whats the attack vector? (lemmy.ca)

submitted 2 days ago by lambdabeta@lemmy.ca to c/selfhosted@lemmy.world

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I'm a software developer working in the telecam sector on security related products, so I know a fair bit about system security. Yet I wound secure my own system far less than most people here if I didn't enjoy cybersecurity as a hobby.

I wonder what you are securing against? Some examples:

jellyfin: unless you have home videos on there, what does it matter if someone exfiltrates some movies? Surely you have basic DOS protection and/or region locking to reduce wasted network traffic, right?
linux: I assume nobody is using their servers as daily drive PCs, so what does it matter if somehow your system is superficially compromised. You can always reimage. Sure they could mine some bitcoin with your system, but it doesn't have that much PSU headroom to cost you much on your bills, right?

It just seems like most attack vectors lead to mild annoyance at most for most systems.

Do you guys just enjoy cybersecurity? Do you actually keep sensitive data on your self hosted systems? Do you self-host on expensive hardware? What am I missing?

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[–] GreenKnight23@lemmy.world 6 points 2 days ago* (last edited 2 days ago)

nothing is exposed publicly except a VPN. no key, no service. (edit: firewall rules only activate on special request from an app on my phone. via software I wrote that polls specific values with specific signatures)

VPN drops you to a vlan that only has app access through reverse proxies.

all network traffic is monitored and alerted using graylog. same for system logs as well.

all alerts notify me directly. all WiFi is whitelist only.

why so strict? mostly because I'm paranoid. I had a stalker earlier in my life that made me fully appreciate privacy.