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Report a Security Vulnerability
Responsible disclosure — HMRC MTD compliance
We take the security of our platform and the sensitive tax data it handles extremely seriously. If you have discovered a security vulnerability, a data exposure risk, or any incident that could affect the privacy or integrity of our users' information, please let us know immediately.
You can report security issues — including vulnerabilities, suspected breaches, or unusual activity — by emailing our dedicated security team:
What to include
- Description of the vulnerability
- Steps to reproduce it
- Potential impact or affected data
- Any supporting screenshots or logs
What to expect
- Acknowledgement within 24 hours
- Regular updates on our investigation
- Resolution within 90 days where possible
- Credit for responsible disclosure
Please do not disclose the vulnerability publicly until we have had a reasonable opportunity to investigate and address it. We will not pursue legal action against researchers who follow responsible disclosure practices.