I've been running my most recent Server built for quite some time now. I think Uptime was somewhere around 5 Months. Absolutely flawless. A few Days ago i started to have issues. Hard-Locks, Freezing...but absolutely zero log entries. Nothing.
The Server was built with "off the shelf" Hardware and no ECC (even though the Ryzen CPU technically supports it, at the time ECC 3200 MHz Memory was still a lot more expensive than it is now) and is running a ZFS. Risky business, but it's "just" a home server. Would never built a server running mission critical stuff like that (and I've been doing that for over 10 years now as my main job).
Over the last few weeks, i've been trying some stuff and had a pretty high memory load.
In any case, i also like Astrophysics and have some newsletters about Auroras and so on. They are extremely rare, here in southern Germany to occur.
Yesterday we had one of the biggest and brightest I've ever seen.
But it got me thinking about my hard locks and crashes and i remembered, i had an account for ESA's SSCC (SSA Space Weather Coordination Centre). They have something called "Post-Event Analysis", where you can correlate certain timestamps to real time data, for example from DSCOVR ("THE" Space Weather Satellite).
For Auroras to occur, the so called "Bz-Value" is important. Basically, it tells the direction of the interplanetary magnetic field. If it's direction is towards the sun and towards the charged particles the sun throws at us, they get deflected. If it's with the direction of the solar wind, the particles "come in" and produce auroras...because the charged particles charge other parts - they generally charge oxygen, which results in green auroras - they also can do all sorts of stuff (and that's why spaceships, sats and other stuff floating around in space need shielding). The Value is measured in nanoTesla(nT).
There's also the Kp-Index...which was 7-8, out of 9.
So yeah - i'm pretty sure, i experienced a Single-Event Upset/Bit-Flip. Amazing stuff!
Edit: Picture of the Aurora https://i.imgur.com/TIxketJ.jpg
Yes it is. There are locks out there, that have extremely sophisticated keys that are basically impossible to clone or "break in". The way those locks are cracked or opened is nearly always unrelated to the key itself. Same goes for Encryption. Even a "simple" 20 Characters password is near impossible to brute force. Most entry points are through various other ways, which is also why i find GrapheneOS for the average user stupid.
There are other things that are needed to actually protect privacy and one of the main things it awareness. Just because stuff is sandboxed and you have some Ad-Blockers on, doesn't mean shit these days.