Report a security problem

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Report a security problem

With this form you can only report vulnerabilities in the Proximus products & services, networks, IT systems and on its sites. For other incident reporting, you can contact the Proximus customer service. In order to thouroughly analyze the security incident by our experts, we would like to ask you to:

  • provide complete and detailed information of the security problem
  • include IP addresses, log entries, visited pages and URLs, screenshots, how to recreate the problem, etc.)

More information regarding the testing scope and guidelines to respect, can be found in our Responsible Disclosure policy.

Files must be less than 10 MB.
Allowed file types: gif jpg jpeg png txt rtf pdf doc docx ppt pptx xls xlsx gz rar zip.

If it concerns sensitive information and you wish therefore to send your message encrypted, please use the Key ID of PXS-CSIRT and send an e-mail to

Key ID : 5D0B022A7CFBC5B3
Length : 2.048
Fingerprint: 8671 CBF3 C010 E4F0 676A 9CD7 5D0B 022A 7CFB C5B3

You prefer to stay anonymous? No problem, but we ask you to mention anyway an anonymous mailbox (gmail, hotmail, yahoo, etc.), so we can contact you for additional questions or feedback. Thank you for your message!

This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.