Edition

Articles on SIM cards

Displaying all articles

May 22, 2025

M&S cyber‑attack: how to protect yourself from sim‑swap fraud

Alan Woodward, University of Surrey and Daniel Gardham, University of Surrey

Sim-swap fraud can have very damaging effects.

SIM cards contain a computer chip that can do some simple mathematics and store some data. Flickr/jbdodane

July 24, 2018

Curious Kids: How do SIM cards make a phone work?

Philip Branch, Swinburne University of Technology

SIM cards link accounts to handsets. They keep communications private. They store messages. Although small and simple, they are a big part of modern mobile phone systems.

Old school and old fashioned - time to drop the SIM. Yui Mok/PA

March 5, 2015

Time to disconnect: why the SIM card has had its day

Markus Kuhn, University of Cambridge

Take SIM cards out of the equation, and mobile phone operators will have to work harder for their customers.

Top contributors

Philip Branch
Associate Professor in Telecommunications Engineering, Swinburne University of Technology
Markus Kuhn
Senior Lecturer in Computer Science, University of Cambridge
Daniel Gardham
Lecturer in Secure Systems, University of Surrey
Alan Woodward
Professor, Department of Computer Science, University of Surrey

Articles on SIM cards

Displaying all articles

Related Topics

Top contributors

Links