Single Point of Failure

Posted on 15 December 20255 January 2026 by David Hopkins

My son dropped his phone in the sink.

It was in there for seconds, not minutes. Retrieved quickly, dried out, switched off and left alone. Then came the waiting to see whether it would turn back on, and if it did, what would still work.

My immediate worry wasn’t really about the phone itself; phones can be replaced. The bigger concern was everything tied to it – authentication apps, text message codes, access to things like email, social media, banking services, school systems, and so much more.

So much of our lives now sits on or around these devices. We rely on a single device being available and working at the exact moment we need it. Without it, we realise how much we rely on it being available and working.

What struck me was how quickly this became obvious to him. Not in a dramatic way, just a practical realisation: if the phone doesn’t work, logging into almost anything becomes difficult or impossible. Resetting passwords often requires access to the very thing you’ve just lost. Even getting help can depend on receiving a code. And that he couldn’t even message his friends to say why he wasn’t going to join the game, or his girlfriend to explain why he wasn’t replying to her messages.

The practicality of losing access, whether due to theft or damage, has prompted us both to consider the fragility of access.

These systems are designed this way deliberately, in the name of security, but rarely with the question “what if I can’t?” properly considered. That creates a quiet fragility we don’t talk about enough, especially for younger people who’ve never known a world without layered authentication and device-based access.

We’re still waiting.

The phone is drying. Power is off. Time is doing its thing. And with it comes the uncomfortable awareness of how much of everyday life is currently paused, simply because one small device may or may not come back on.

Sometimes it only takes a very ordinary accident to make that visible.

Update: 17/12 – 48hrs after the dunking it’s desperately trying to reboot, but is stuck in a restart loop. It looks fatal, but I’ll find a local expert for the definitive diagnosis before giving up.

Update: 19/12 – Another (more knowledgeable and competent) fixer was able to disconnect something in the phone that was preventing it from booting and it booted up fine. But it’s the part of the internals that has corroded and stopped the touch-screen from working. It can be repaired but would take £00’s and weeks, and is quicker and cheaper to just get a new one. Seeing as most content on the phone is stored in the cloud, it’s not worth it.

New phone ordered and now we start the recovery of accounts without access to the phone number needed for 2FA. Oh sweet jeez, how and why did we let life become so reliant on a single device and singe point of failure?