Greywell Cyber

Security

Contact Us Securely

Last updated 11 October 2026.

For anything sensitive, including security reports, use security@greywellcyber.com. It is a company mailbox on our own domain.

Our Encryption Key

We are issuing a new OpenPGP key for security@greywellcyber.com. When it is ready it will be published here as a downloadable file with its full fingerprint, and listed in our security.txt. Any key published on our previous website is retired: please do not use it.

Until the new key is here, send a short first message without the sensitive detail and we will agree a way to receive it.

Reporting a Vulnerability

See our vulnerability disclosure policy for what is in scope and what to expect from us.

Everything Else

For work enquiries use solutions@greywellcyber.com, and for your personal data legal@greywellcyber.com.