Data breaches have become a defining risk of modern digital life. The British Airways breach is one of the most significant in recent memory — and if you've ever had an account with the affected service, your personal data may be circulating among cybercriminals right now.
This guide explains exactly what happened, what data was taken, and how you can check whether your information was exposed — for free, in 30 seconds.
What Happened?
The details of this breach are covered in the FAQ section below, where we answer the most important questions clearly and concisely. The key facts: who was affected, what data was taken, how attackers got in, and what the consequences have been.
Why Does This Still Matter?
Many people assume that because a breach happened years ago, the risk has passed. In reality, stolen data is sold, traded, and reused for years after a breach. Credentials from old breaches are used in credential stuffing attacks — automated attempts to log in to your other accounts using the same email and password combination.
If you reused the same password across multiple sites, one old breach can unlock dozens of your current accounts.
How to Check If You Were Affected
The fastest way is to use our free breach checker. Enter your email address and we'll scan it against known breach databases instantly — no signup required.
If your email appears in a breach, you'll see exactly which breaches affected it and what type of data was exposed. That tells you precisely where to start.
What to Do If You Were Affected
If your data was in this breach — or any breach — take these steps:
- Change the affected password immediately — especially if you reused it anywhere else.
- Enable two-factor authentication on every account that supports it, starting with email and banking.
- Check for suspicious activity on financial accounts if payment data was involved.
- Be alert for phishing — attackers use breach data to craft convincing personalised scam messages.
- Freeze your credit if your Social Security number, passport, or government ID was exposed.
Frequently Asked Questions
When did the British Airways data breach happen?
The breach ran from 21 August to 5 September 2018 — approximately two weeks. British Airways disclosed it on 6 September 2018, the day after discovering it.
How did the British Airways breach happen?
Attackers from the Magecart group injected 22 lines of malicious JavaScript into the British Airways booking page. The script silently copied payment details entered by customers and sent them to a server controlled by the attackers.
What data was stolen in the British Airways breach?
Payment card details — including card numbers, expiry dates, and CVVs — along with names and billing addresses were skimmed from approximately 500,000 customers booking through the BA website and mobile app.
Did the British Airways breach affect mobile app users?
Yes. The same malicious script affected customers booking through the British Airways mobile app as well as the website during the breach period.
What was the fine for the British Airways breach?
The UK's ICO issued a £20 million GDPR fine in October 2020, significantly reduced from the initial proposed fine of £183 million due to economic impact considerations including the COVID-19 pandemic.
Sources
- ICO – British Airways penalty notice
- British Airways – Security incident statement
- RiskIQ – Magecart British Airways analysis