A new version of the Primer is now available for your downloading delight. Completely redesigned in the lovely new Safenetwork.tech livery, the fully updated Primer 2019 is fortified with PARSEC, the 20 fundamental principles, XOR-URLs, defences against common attacks and other goodness. So hurry hurry hurry and get yours today (before it goes out of date).
Many thanks to all those who have helped with the rewriting, typo spotting, idiot proofing and sense checking. You know who you are.
If anyone with better web design skills than me (i.e. anyone with web design skills of any sort whatsoever) fancies creating an editable web version let me know.