Data breaches have become a defining risk of modern digital life. The Adobe 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 Adobe data breach happen?
Adobe disclosed the breach in October 2013. The attackers had accessed systems in August 2013, stealing data from approximately 153 million user records.
What data was stolen in the Adobe breach?
Attackers took user IDs, encrypted passwords (using 3DES — a weak symmetric cipher, not a proper password hash), password hints in plain text, names, and email addresses. Around 3 million payment card records were also accessed, though those were encrypted.
Why was the Adobe password encryption weak?
Adobe used 3DES encryption rather than a password hashing algorithm. Because the same key encrypted all passwords, identical passwords produced identical ciphertext — making it relatively easy to crack passwords using the leaked hints and frequency analysis.
How do I check if my Adobe account was in the breach?
Use the free breach checker at Scan My Shadow. If your email appears, update your Adobe password and any accounts where you reused that password.
Was source code stolen in the Adobe breach?
Yes. Portions of source code for Adobe Acrobat, ColdFusion, and other products were taken, which could help attackers identify software vulnerabilities to exploit in future attacks.
Sources
- Adobe – Security blog post on 2013 breach
- Have I Been Pwned – Adobe breach entry
- Krebs on Security – Adobe Breach Coverage