MrExcel
mrexcel.com
About This Breach
MrExcel.com detected a hack in progress on its forum in December 2016, and promptly shut it down. While initially believing no user data had been compromised, evidence emerged around January 8, 2017, indicating that some user information, including user IDs, email addresses, and hashed passwords, had been accessed and posted online. The information was removed later that month. Users who had accounts on the MrExcel Message Board on or before December 6, 2016, were affected.
Data Exposed
Breach Details
| Breach Type | Data Breach |
| Searchable | Yes |
| Verified | Yes |
| Sensitive Data | No |
| Reference | https://www.mrexcel.com/details-of-data-breach-at-mrexcel-com/ (opens in new tab) |
Frequently Asked Questions
When did the MrExcel data breach happen?
MrExcel was breached in Dec 2016. The breach was added to the XposedOrNot index on November 8, 2023.
How many records were exposed in the MrExcel breach?
314,098 records were exposed, making it the #563 largest of the 763 breaches in our index.
What data was exposed in the MrExcel breach?
The exposed data includes: Usernames, Email addresses, Passwords, Dates of birth, IP addresses.
What should I do if I was affected by the MrExcel 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.
More Education Breaches
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.
Review Device Security
Update your devices and browsers, and check for unauthorized logins.
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.