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Change the password
On the breached site and everywhere else you reused it. Make every password unique.
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Questel.com breach: questions and answers
When did the Questel.com data breach happen?
The Questel.com breach dates to July 2026.
How many records were leaked in the Questel.com breach?
LeakCheck has indexed 979,261 records from the Questel.com breach.
What data was exposed in the Questel.com breach?
The leaked records include email addresses, names, phone numbers, physical addresses and geographic locations.
Were passwords exposed in the Questel.com breach?
No. The records indexed from Questel.com do not include passwords — but the other details they hold can still be used for phishing.
How do I check if my data was in the Questel.com breach?
Enter your email address, username or phone number in the search form on this page. The free check shows whether your data appears in the Questel.com breach — and in any of the other 1,468 sources LeakCheck indexes.
What should I do if my data was in the Questel.com breach?
Change the password you used on Questel.com and everywhere you reused it, turn on two-factor authentication, and watch for phishing that quotes details from the leak. To hear about the next breach first, set up breach monitoring.