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The german BKA has found on an Underground-Economy-Platform roughly 500,000,000 credentials containing personal information from email to password.
The database has pretty recent entries dating back to December 2016. Most of the data is probably old and from previous leaks, but I still highly recommend to see for yourself.
Check if your identity has been compromised here
(check provided by Hasso-Plattner-Institut)
If your information has been compromised, change your passwords immediately.