How the internet actually works

The plumbing every attacker uses, explained without jargon. Across five short topics you will follow a message's real journey, learn how names become addresses, see what the padlock does and does not protect, make sense of ports and protocols, and finish with a single map that places any network attack where it belongs. Each idea is taught through a real outage or breach.

1. 1
   The journey of a messageStart

   See the trip every message makes, then watch the day Facebook deleted its own directions.

   ~16 min3 ideas1 real case1 lab
2. 2
   IP and DNS: how you reach a websiteUp next

   Learn how a name becomes an address, then see the day the internet's address book was knocked offline.

   ~17 min3 ideas1 real case1 lab
3. 3
   HTTP, HTTPS and the padlockUp next

   Understand what the padlock really protects, and what it does not, then see why the whole web switched it on.

   ~16 min3 ideas1 real case1 lab
4. 4
   Ports and protocols in plain EnglishUp next

   Learn the numbered doors every service listens behind, then see the one open door that lets ransomware in again and again.

   ~15 min3 ideas1 real case1 lab
5. 5
   Where each attack fits into the flowUp next

   Pull the whole module together into one map, then see attackers hijack the journey itself to steal real money.

   ~15 min3 ideas1 real case1 lab