DiskUnion
diskunion.net
About This Breach
The Disk Union Data Breach in June 2022 affected the Japanese record chain store, exposing 775K unique email addresses along with names, post codes, phone numbers, and plain text passwords.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | No reference available |
Frequently Asked Questions
When did the DiskUnion data breach happen?
DiskUnion was breached in Jun 2022. The breach was added to the XposedOrNot index on October 30, 2025.
How many records were exposed in the DiskUnion breach?
775,380 records were exposed, making it the #442 largest of the 763 breaches in our index.
What data was exposed in the DiskUnion breach?
The exposed data includes: Email addresses, Names, Usernames, Passwords, Phone numbers, Geographic locations.
What should I do if I was affected by the DiskUnion breach?
Change your password on the affected service (and anywhere you reused it), turn on two-factor authentication, and set up free breach alerts on XposedOrNot so you know the moment your email appears in a new breach.
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What Should You Do?
Change Your Passwords
Update your password immediately, using 12+ characters with numbers and symbols.
Enable Two-Factor Authentication
Add 2FA on all supported accounts using an authenticator app like Google Authenticator or Authy.
Watch for Phishing Calls & SMS
Be cautious of unexpected calls or texts asking for personal information.
Monitor Your Accounts
Set up login alerts and review account activity regularly for suspicious access.
Use a Password Manager
Never reuse passwords: use a password manager to generate unique ones for each account.