Report a security concern

If you believe you have found a security vulnerability affecting this website or a Threshold Security service, please report it privately to contact@threshold-security.co.uk.

Please include

• The affected URL or service
• A clear description of the issue and its potential impact
• Safe reproduction steps or a minimal proof of concept
• Your preferred contact details

Testing boundaries

This disclosure channel does not grant permission to perform security testing. Do not access other people's data, disrupt services, use destructive techniques, establish persistence or attempt social engineering. If you encounter sensitive information, stop and report it.

What to expect

We will acknowledge a good-faith report as soon as practical, investigate it and keep you informed when there is meaningful progress. Please allow reasonable time for remediation before publishing details.