You are signed in. Close

You are signed out. Close

Thank you. Your subscription has started. Close

Thank you. You will get an email when a new comic comes out. Close

We could not confirm your payment. If you paid, use the link "Sign in" at the bottom of the page. Close

Something went wrong on our side. Please try again in a moment. Close

Project Visually
Random Sign in Subscribe
Previous episode Forward secrecy: why a key stolen tomorrow cannot open what was recorded today

What the HTTPS padlock means: how your browser talks in secret on a Wi-Fi anyone can read

What HTTPS does not hide: who you talk to, when, and how much

HTTPS hides every word you send. Yet a stranger on your Wi-Fi still learns a lot about you. He does it without reading a single word.

  1. 1 Every packet still shows its outside: where it goes and where it comes from, like an envelope. The routers on the way need it to deliver the packet, so it can't be scrambled.the outside: plain wordsto: the shop's serverfrom: Miva's phonek%7#x!Qz&2the inside: scrambled

    Every packet still shows its outside: where it goes and where it comes from, like an envelope. The routers on the way need it to deliver the packet, so it can't be scrambled.

  2. 2 And the first hello often carries the name of the site in plain words. One server can hold many websites, and the name tells it which certificate to show.shop.exampleto: the shop's serverhelloRono

    And the first hello often carries the name of the site in plain words. One server can hold many websites, and the name tells it which certificate to show.

The rest of this episode is for subscribers

Subscribe to read every premium episode. You can cancel when you want.

Paid yearly: $99 instead of $119.88

You finished the comic Back to the comic

Share this comic

More comics