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Know what to do in the first hour of a data breach

A laptop's been stolen, an email went to the wrong list or someone's got into your account. Get a calm first-hour checklist, what to record and the ICO guidance on whether to report it.

Updated 17 Oct 2026

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The problem

Panic makes things worse. There may be a deadline for reporting, and customers may need to be told, so the first hour matters.

The outcome

A laptop's been stolen, an email went to the wrong list or someone's got into your account. Get a calm first-hour checklist, what to record and the ICO guidance on whether to report it.

The prompt · ChatGPT

Help me respond to a possible data breach.

What's happened: [details and when]
What data might be involved: [names, emails, bank details, health info]
How many people: [rough]

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A short example

A laptop's been stolen, an email went to the wrong list or someone's got into your account. Get a calm first-hour checklist, what to record and the ICO guidance on whether to report it.

1

You describe what's happened and what data might be involved.

2

The assistant asks how many people are affected and whether it's still happening.

3

You get a first-hour checklist, a breach log, a decision guide pointing to the ICO and message drafts.

What happens

Use ChatGPT to know what to do in the first hour of a data breach

A laptop's been stolen, an email went to the wrong list or someone's got into your account. Get a calm first-hour checklist, what to record and the ICO guidance on whether to report it.

Tools

Paste the prompt, fill the blanks, copy the draft.

  • ChatGPT — required. Drafts from the text you paste. Nothing is sent.