UK PSTI Vulnerability Policy & Reporting


This vulnerability disclosure policy applies to any vulnerabilities you are considering reporting to us. We recommend reading this vulnerability disclosure policy fully before you report a vulnerability and always acting in compliance with it. We value those who take the time and effort to report security vulnerabilities according to this policy. However, we do not offer monetary rewards for vulnerability disclosures.


If you believe you have found a security vulnerability, please submit your report to us using the below web form. In your report please include:

Contact Information. If you would like us to follow-up with you with status reports, please provide us with sufficient contact information, such as contact name and email address, so that we can keep in touch with you. You are not required to provide contact information to submit a report. Please note your contact information will only be used to contact you regarding the vulnerability you reported and will not be used for any other purpose. Your personal information will be protected as described in our Privacy Policy.

Note: You will receive report acknowledgement within 48 hours of submitting a vulnerability report. Further ongoing status updates will be provided every 7 days.


After you have submitted your report, and if you provide contact information, we will respond to your report within 7 calendar days to acknowledge the receipt of your report and aim to triage your report within 15 working days. We’ll also keep you informed of our progress, including but not limited to:

Priority for remediation is assessed by looking at the impact, severity, and exploit complexity. Vulnerability reports might take some time to triage or address. You are welcome to enquire about the status but should avoid doing so more than once every 14 days. This allows our teams to focus on the remediation. We will notify you when the reported vulnerability is remediated, and you may be invited to confirm that the solution covers the vulnerability adequately. Once your vulnerability has been resolved, we welcome requests to disclose your report. We’d like to unify guidance to affected users, so please do continue to coordinate public release with us.


You must NOT: