Operation Endgame 4.0 data breach
The Operation Endgame 4.0 breach happened on June 18, 2026 and exposed 4,348,526 accounts. 2 kinds of data were exposed.
Overview
- Breach date
- June 18, 2026
- Recorded on
- June 18, 2026
- Accounts exposed
- 4,348,526
- Exposed data
- Email addresses, Passwords
- Risk score
- 64 out of 100
Risk based on the exposed data
This breach scores 64 out of 100. The score is driven mostly by Passwords, Email addresses.
The risk score is a guide to how dangerous a breach is, judged by the kinds of data exposed. The number of accounts is not included.
Breaches from the same period
- Inter-Con Security (2026-06-18, 276,114 accounts)
- Houston City College (2026-06-16, 831,642 accounts)
- June 2026 Stealer Logs (2026-06-15, 56,278,397 accounts)
What affected users should do
- Change your Operation Endgame 4.0 password, and also change it on any other service where you used the same password. You can create a new one with the password generator.
- Turn on two-factor authentication for your login.
This site organizes publicly available information about data breaches. Data as of August 5, 2026. Breach dates are as originally listed; when only the month is known, the date is recorded as the 1st.