The S in HTTPS

That is where the sample ends

A plain-language primer on web encryption for people who type card numbers and for people who run sites. What plain HTTP exposes, how the handshake works without the mathematics, who signs a certificate and why your browser believes them, the address-reading rule that defeats most fake sites, the five browser warnings that look alike and mean different things, what still leaks over HTTPS, and the full move for a site owner: certificates and the renewal that fails silently, redirects, mixed content, strict transport security and cookie attributes. The full manual runs 84 pages. One payment, instant download, yours to keep.