The microchip cat flap has a battery, and the battery died once, in November, at night, in the rain.

Tuga sat outside a house that was warm, intact, and full of her food. Nothing had been stolen. Nothing was broken in any way that mattered to anyone except her. The arrangement was perfect and she could not get into it, and from where she was standing the distinction between my dinner is safe inside and my dinner is gone was academic.

That's what happened to several million people this morning.

1. What Actually Happened

On the morning of 20 October 2026, Revolut customers across the UK, Ireland and beyond found they couldn't log in, couldn't transfer money, and couldn't use their cards. Downdetector reports spiked between 7 and 8am and the disruption ran for hours.

The cause wasn't Revolut, exactly. Google Cloud reported a power event in its europe-west2-b zone — its London region — and the blast radius was considerably wider than one fintech. Lloyds and HSBC users reported problems. So did a courier company and, memorably, a courts video platform.

Revolut's statement was the right one and worth quoting precisely: "We can confirm that all our customers' money and data are safe." As far as anyone can tell, that's true.

2. The Distinction That Matters

Here is the thing most commentary got wrong today, in both directions.

This was an availability failure, not a solvency failure. Nobody's balance vanished. No reserve was missing. Revolut did not become unable to pay its customers; its customers temporarily became unable to reach it. Those are enormously different events, and anyone using today to imply the second thing was happening is doing FUD.

And availability is not a minor property. A balance you cannot access at the moment you need it is, for that moment, not money. If you were at a till, at a petrol station, at an airport, paying for something that couldn't wait — "your funds are safe" is factually reassuring and practically useless. Anyone dismissing today as "just an outage" has never stood at a counter with a declining card and a queue behind them.

Both halves are true. Keep both.

3. The Shape of the Failure

What's genuinely interesting isn't the fintech. It's that one power event in one cloud zone simultaneously degraded multiple banks, a delivery network and a court system.

This is the concentration story I keep writing about, in a different costume. Not custody concentration this time — infrastructure concentration. A small number of providers now sit underneath an enormous share of the things people depend on, and when one has a bad morning, the failures arrive together rather than independently. Your backup payment method is only a backup if it doesn't run on the same substrate as the first one.

Worth checking, genuinely: do your bank and your "other" bank use the same cloud region?

4. What Bitcoin Did This Morning

It produced blocks. Roughly every ten minutes, through the whole thing, as it has every day for over fifteen years.

That is not a boast and it isn't a prediction about price. It's an architectural difference: there is no provider to have a power event, no region to go down, no company whose status page you refresh. Tens of thousands of independent nodes don't have a correlated failure mode of this kind.

But the honest half: your access to it is not similarly bulletproof. If your coins are in a custodial app, you have exactly the dependency Revolut's customers discovered today. If your wallet is self-custodial but your phone is dead, your internet is out, or the power is off, the network being fine does not help you in that moment. Self-custody doesn't buy you magical uptime — it removes one specific dependency, which is the company. That's valuable and it's not everything.

5. What To Actually Do

Independent of any ideology, today's lesson is redundancy:

• Two payment rails, from different institutions, and ideally not on the same infrastructure.
• Some physical cash. Unglamorous, works in a power cut, costs you nothing to keep.
• Don't let one app hold your salary, your spending, your savings and your travel money. Convenience consolidates by default; you have to split things on purpose.
• For bitcoin people: your spending wallet and your savings should already be separate, and neither should be an exchange. Today was a free rehearsal for a worse day.
• Know your failure mode before you need to. Which of your things would stop working if your phone died right now? That's a five-minute audit and nobody does it until after the morning that makes them.

6. About Revolut

I use it. It's genuinely one of the better products in European banking, today's morning included — the app is good, the FX is good, it does things my traditional bank still can't.

Today doesn't change that, and it shouldn't change it for you either. Outages happen to everyone; the traditional banks on that list this morning are not more reliable, they're just quieter about it.

If you want to open an account, here's my referral link: revolut.com/referral — it gives us both a small bonus, at no cost to you, and it's how this blog pays for cat food.

And then take the advice in section 5 and don't put everything in it. Including my recommendation.

The Point

The food was always inside. The house was warm, the tin was in the cupboard, and the only thing standing between Tuga and her dinner was a small piece of plastic with a dead battery and no interest in her opinion.

Her money was safe. She was outside in the rain. Both of those sentences were true at the same time, and she'd have traded the first for the second without hesitating.

Keep a second way in. 🐾⚡