https://media.ccc.de/v/36c3-10737-sim_card_technology_from_a-z

Billions of subscribers use SIM cards in their phones. Yet, outside a relatively small circle, information about SIM card technology is not widely known. This talk aims to be an in-depth technical overview.

Today, billions of subscribers use SIM cards in their phones. Yet, outside a relatively small circle, information about SIM card technology is not widely known. If at all, people know that once upon a time, they were storing phone books on SIM cards.
Every so often there are some IT security news about SIM card
vulnerabilities, and SIM card based attacks on subscribers.
Let's have a look at SIM card technology during the past almost 30 years and cover topics like

Quick intro to ISO7816 smart cards
SIM card hardware, operating system, applications
SIM card related specification bodies, industry, processes
from SIM to UICC, USIM, ISIM and more
SIM toolkit, proactive SIM
eSIM

LaForge

https://fahrplan.events.ccc.de/congress/2019/Fahrplan/events/10737.html