That's not how ICO fines work.
The way they work is this: If you suffer a data breach that the ICO hears off, they'll investigate.
Once the investigation is complete, they'll do a few things:
1. Write a beautifully-worded press release explaining exactly what you did wrong and put it on the news wires.
2. Write an equally beautifully-worded report explaining what you did wrong in explicit detail.
3. Issue a thumping great fine.
It's important to note that they don't have to take an organisation to court to raise this fine. It's the other way around - if your organisation gets fined, it's down to you to raise an appeal.
Parent posting needs to be modded up.