SmartTrust
Secure transactions and exchange of information via the mobile phone with PKI security.

Diversinet
Passport Certificate Server Security software for wireless e-commerce applications.

iD2
PKI, public key infrastructure, smart cards.

Attacks against the WAP WTLS Protocol
Article by Markku-Juhani Saarinen.

mi4e
Develops mobile internet for ecommerce infrastructure software.

NTRU Cryptosystems
Delivers public key cryptography solutions to secure electronic media and wireless communications and content on mobile devices such as the Palm Pilot, or in any constrained environment.

WTLS
An Introduction to WAP Security at the Network Protocol Layer by Philip Mikal

Columbitech Security White Papers
White papers about WAP security and the WTLS protocol.

DallasCon
Wireless security conference presents both annual information security conferences as well as security training seminars (such as WAP security) held throughout the year. Held in Dallas, Texas. The 2003 conference was dedicated completely to Wireless Security. A wireless security Boot Camp and Certification exam was available.

Mi4e proposes to fix WAP security hole
describes MI4E's IIS webserver module which can allow IIS webservers to interact directly with WAP clients.

WAP Security Introduction
An outline of WAP security issues and concerns, particularly addressing the use of WAP gateways.

WAP security - Frequently asked questions
WAP security frequently asked questions regarding sessions, cookies, user authentification and SSL/WTLS over WAP protocol

WTLS-webopedia definition
A concise, basic definition of WAP Transactional Layer Security