TELUS Business High Speed Internet Access (HSIA) Security Measures Policy

Effective June 2004, TELUS implemented security measures on the High Speed Internet Access network called the HSIA Security Policy, which mainly consists of blocking certain network ports on the network in an effort to reduce the exploitation of customer PCs, and to reduce the levels of spam entering and leaving the network.

The purpose of the HSIA Security Policy is to protect the TELUS HSIA network from viruses.

: TELUS Port Blocking will only affect customers on Dynamic IP packages. Customers on Static IP packages will still have access to all Ports.

The security policy has been implemented to protect the TELUS network from new type of viruses and worms that propagate themselves through unsecured/unpatched computers. A few examples of such worms are Nachi, MSBlaster and Sasser. Any computer that has one of these viruses will immediately infect other computers on the network that do not have the proper security measures in place.

All programs that connect to the Internet use a specified "port". You can think of a port as a small part of your network connection and there are thousands of these "ports". All programs connect on various ports to the TELUS network. For example, if you are using a web browser, such as Google Chrome, you are browsing the web on port 80 or 443.

The following ports will have inbound (ingress) and in some cases outbound traffic blocked.