Lesson 5 of 6 · 10 min

When something goes wrong: stop, tell, fix, learn

What to do the moment AI gets something wrong, who to tell, and why telling is safe.

AI will get something wrong in your work. Not because you used it badly, but because that's what these tools do now and then: a confident wrong figure, a source that doesn't exist, a message that goes to the wrong person. Your organisation isn't asking you never to make a mistake. It's asking you to do four things when one happens.

1. Stop

Stop using it for that task, and don't pass on anything else it made until it's been checked. If something is still happening, such as a feature still sending emails, switch it off if you can do so safely. You don't need anyone's permission to stop something that's going wrong.

2. Tell

Tell the right person within one working day. That's the rule, and it's a deadline, not a target: if you can tell them sooner, do. The right person is whoever your organisation has named for AI problems, often your manager or the person who runs AI work.

If personal or sensitive data is involved (a customer's details, someone's health information, staff records, card numbers), tell whoever looks after that data instead. That's often compliance, or a data protection officer. They're the person the organisation trusts to hold this kind of disclosure, outside your management chain.

Keep the message short. Say four things:

  • what happened
  • where: the tool, and the piece of work
  • what data was involved, if any
  • what you've done so far

Describe the work, not a person, even if the person is you. Near misses count too: the wrong figure you caught before it went out is worth telling, because the next one might not be caught.

3. Fix

Fixing it isn't yours alone. The owner of the tool or the way of working puts it right for everyone who uses it: they contact anyone affected, change the setting or the template, and check whatever else the same tool produced. Your part is to help them understand what happened.

4. Learn

Last, a short, blameless note goes on the friction list: what happened, why the work allowed it, and what changes. It records the work, never the person. That's how one person's bad afternoon becomes a check that protects everyone.

WEEK 1WEEK 2WEEK 3WEEK 4WEEK 5WEEK 6HiddenFixed quietly, or not at allTold within a dayStop, tell, fix, learn6 TIMESONCE
Fig. 5.1A mistake you hide keeps happening; one you tell is fixed for everyone. Illustrative: six weeks of the same AI slip, hidden and told.

Practise on five situations. For each one, choose what you'd do first, then who you'd tell.

Try itRoute it: what first, and who do you tell?
First, you…
0 of 5 routed · when you're not sure, tell someone within one working day rather than no one

Why telling is safe

Most people hesitate to tell. They worry about looking careless, or about what happens next. That worry is common, and it's understandable.

48%

of desk workers would be uncomfortable admitting to their manager that they used AI for common tasks.

Slack Workforce Index, Fall 2024

1976

the year NASA's Aviation Safety Reporting System opened, so pilots could report their own mistakes safely.

NASA ASRS Program Briefing

121,128

safety reports filed with that system in 2025 alone.

NASA ASRS Program Briefing, 2025 data

That's why the first of the four promises exists. Telling us is safe. Nothing you disclose about how you use AI is used in performance reviews or in decisions about who leaves. A mistake you disclose is handled through stop, tell, fix, learn, as coaching, not discipline. That holds even if the mistake exposed regulated data or caused harm.

Only wilful or criminal conduct falls outside that protection: knowingly breaking the rules, or breaking the law. An honest slip is never that. And if anyone breaks the promise, that's treated as an incident in its own right.

Aviation learned this decades ago. Pilots who report their own honest mistakes to NASA's Aviation Safety Reporting System are protected from penalties in most cases, as long as the mistake wasn't deliberate or criminal and they report it within ten days. People across aviation file well over a hundred thousand reports a year, and those reports catch problems before they become accidents. Punishing a report doesn't make the next mistake less likely. It makes the next report less likely.

Who you tell, where you work

Now write down your two contacts, so you don't have to look them up on a bad day. If nobody has told you yet, choose “Not told yet”: the question to ask your manager goes on your record. Then practise the message once, so it's easy when it's real.

BuildWho you tell, and what you say
Who do you tell when AI gets something wrong?The person your organisation has named. Often a manager or whoever runs AI work.
Who do you tell if personal or sensitive data is involved?Whoever looks after that data. Often compliance.
Practise the messageThink of a real slip, or make one up. Say what happened to the work, not who did it.
What data was involved?This decides who you tell.
What have you done so far?
Send within one working day toNo sensitive data

The right person

Not told who yet? Tell your manager.

I'm telling you about a problem with AI, so it can be fixed.
What happened: [what happened].
Where: [the tool and the piece of work].
Data involved: [none, internal, personal, client or regulated].
What I've done so far: [what you've done].
If AI gets something wrong
  1. 1Stop. Stop using it for that task. Pass on nothing else it made until it's checked.
  2. 2Tell. Within one working day: the right person. If it involves personal or sensitive data: whoever looks after the data.
  3. 3Fix. The owner puts it right for everyone who uses it.
  4. 4Learn. A short, blameless note goes on the friction list.
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In healthcare

If you work in healthcare, anything AI gets wrong that could affect a patient also goes into the patient-safety reporting you already use. Stop, tell, fix, learn sits alongside it. It doesn't replace it.

ScenarioThe figures in the board pack

An accounts assistant used the approved assistant to summarise the monthly numbers for a board pack. The morning after it went out, they notice one total is wrong: the assistant added a row twice. Nobody has spotted it yet.

Chance the mistake is caught before it happens again40%

What do you do?

Illustrative. The meter shows the direction things move, not a measured value.
The idea

Stop, tell within one working day, let it be fixed for everyone, and learn from it. A mistake you tell is coaching, not discipline.

CheckQuick check

An AI-drafted reply you sent a customer this morning promised a refund nobody approved. What do you do first?

CheckQuick check

You realise you pasted a patient's details into a personal AI account last week. What does the disclosure promise mean for you?

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