If you use public-key encryption software, you can send me a secure email by encrypting it with the following public key. This key will expire on Wednesday 1st January 2020. You can either copy it directly from this page or download the plain text version.
What is public-key encryption?
Public-key encryption is a technique for sending information in such a way that it can only be read by the intended recipient. Even if someone manages to intercept the message en route, they won’t be able to read it without the private key known only by the recipient.
Now that the UK government is planning to intercept all internet traffic despite its dismal track record on data security, this would be a good time to start using encryption software on your computer. I recommend using GNU Privacy Guard (“GnuPG”), which is free and runs on most operating systems.