Accessibility
Fiducia Together logoFiducia Together

Data breach

Personal data lost, stolen or exposed. Seventy-two hours to report.

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

What it means

A personal data breach is a security incident leading to accidental or unlawful destruction, loss, alteration, or unauthorised disclosure of or access to personal data.

Why it matters

Where it risks people's rights and freedoms it must be reported to the ICO within 72 hours of becoming aware, and to the individuals themselves where the risk is high.

What it looks like in practice

It is not only hacking: an email sent to the wrong person, a lost laptop, a misconfigured folder, and a bin bag of paper all qualify.\n\nKeep a breach log of every incident including those not reported, with the reasoning. The ICO expects it.

What to watch out for

The clock starts at awareness, not at investigation. Businesses lose the window deciding whether it is serious.\n\nAnd notifying customers badly — see crisis communications.

Where to get proper advice

The ICO's breach reporting service and helpline, both free. Your insurer, because cyber policies have notification conditions.

Where to read more

Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28

Please note: This page explains what a term means. It is general information, not legal, financial, tax or investment advice, and it does not know anything about your business. Before you sign, file or commit to anything, check it with an accountant, a solicitor, or the official guidance we link to.

Accessibility toolkit

Done

Profiles


Text

Text size100%
Off
100%

Colour & contrast


Reading & focus

Saved to this browser for 6 months. Signed in to a Fiducia app? Set it up there instead and it follows you onto any device.

Cookies on this site

We use one cookie to remember your reading and accessibility settings, and one to remember this choice. Neither is used to track you. This site sets no advertising or analytics cookies of its own, and visits are counted on our own server, so nothing follows you off this page. Read our privacy policy.