Francis lives in Royston near Cambridge in the east of England.

You can contact Francis by telephone (+447840191336), email and the signal application. Signal, which is secure and end-to-end encrypted, can be used for video and voice calls as well as text messages.

For one-to-one communication Francis recommends the telephone and signal, with video calls by arrangement. Zoom and Microsoft Teams are used for videoconferencing.

For encrypting messages it is easiest to use signal rather than email, but if you wish to communicate via encrypted email, first send me an S/MIME-signed message with a request to share confidential information, and I shall reply in kind.

If you wish to share encrypted files, such as via a cloud server, please contact me first so that we can exchange PGP keys. Do not use PGP for encrypting email messages. Use S/MIME for that purpose.

Please note that email notifications are disabled. Email is recommended for communication that does not require an instant response. If you must use ordinary mobile text messages (SMS) to contact Francis, kindly provide an email address and/or telephone number for reply.

Whenever Francis is electronically incommunicado for longer than a day, there should be an email auto-responder in place to inform you of his whereabouts.