Questel
SourceHave I Been Pwned
StatusConfirmed breach
AddedSeptember 1, 2026
OccurredAugust 1, 2026
Accounts affected1,226,209
Domainquestel.com
What was exposed
Email addressesEmployersJob titlesNamesPhone numbersPhysical addressesSupport tickets
What to do if you were affected
- Expect more phishing and spam at this address. Treat messages that reference this company with extra caution.
- Watch for text-message phishing and SIM-swap attempts on your phone number.
- Be wary of targeted scams that use your personal details to sound convincing.
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Protect your data Details
In August 2026, the French intellectual property software and services company Questel was the target of a ShinyHunters "pay or leak" extortion campaign . The group subsequently published an extensive corpus of data they alleged was obtained from the company, largely comprising corporate contact information associated with sales leads, support cases and marketing activities, with 1.2M unique email addresses. The data also included names, employers and job titles, along with physical addresses and phone numbers.
Frequently asked questions
What is the Questel data breach?
In August 2026, the French intellectual property software and services company Questel was the target of a ShinyHunters "pay or leak" extortion campaign . The group subsequently published an extensive corpus of data they alleged was obtained from the company,...
When did the data breach happen?
This data breach occurred around August 2026.
How many accounts were affected?
Around 1,226,209 accounts were affected.
What information was exposed?
Exposed data included Email addresses, Employers, Job titles, Names, Phone numbers, Physical addresses and Support tickets.
What should I do if I was affected?
Expect more phishing and spam at this address. Treat messages that reference this company with extra caution. Watch for text-message phishing and SIM-swap attempts on your phone number. Be wary of targeted scams that use your personal details to sound convincing.
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