@@user-fp2dw9xj6r They have a Share information securely on the MI6 site. "Before filling out this form, you should take some sensible precautions. We want to keep you safe and ensure that your contact with SIS is secure. Internet traffic is monitored by most governments. It is also possible, in some circumstances, for specialists to retrieve internet traffic from a device that you have used. To use this site safely, you should be confident in using the internet in a secure way and have a good understanding of the vulnerabilities of the device and internet connection you are using. We recommend you consider the following steps: Do not contact us from a computer or connection that can be linked to you or people that you know. Do use a new, disposable device or public computer (perhaps in a library or internet café - although in many counties these are closely monitored). If possible, do not contact us from inside your own country, or from a country likely to share security information with your country. Be aware of security cameras and other techniques that may allow other to see your screen. Create a new email account (for example Gmail, Outlook or GMX) for us to reply to and only check this account on a computer and connection not linked to you. Do not use a name, phone number or other details linked to you when creating this account. Consider additional precautions such as hiding your internet activity using commercial options. Commercial internet security is a fast changing field and you need to be sure any method you use is secure and does not attract attention."