Kurt Seifried

12 articles

Managing Outgoing Viruses

By Kurt Seifried ([email protected]) Every once in a while, I see some new security development that really sets me on edge. The latest one is courtesy...

Email Filtering: The Real Deal

By Kurt Seifried ([email protected]) for SecurityPortal Email is probably my favorite Internet related service. It's also the one that causes me the most...

FTP Attacks

By Kurt Seifried ([email protected]) for SecurityPortal FTP used to be the king of the Internet. If you wanted to download something you went...

Ending Trust in Certificates

By Kurt Seifried ([email protected]) for SecurityPortal There are hundreds of thousands of certificates floating around. The whole premise of certificates is that multiple...

CGI

By Kurt Seifried ([email protected]) for Security Portal I was surfing on the Web a few days ago looking at various homepages for security professionals...

Why Firewalls?

Firewalls are usually seen as a requirement if you are going to attach your network to other networks, especially the Internet. Unfortunately, some network...

Certificate Authority, Web of Trust, Or. . . ?

Wow, four more days and we're done with 2000. Turns out the millennium bug was a bit of a non-event. I wonder if any...

Backdoors, Back Channels and HTTP(S)

As a network or system administrator, you usually desire the ability to limit what goes into and comes out of your network. People achieve...

Auditing Code

Auditing Code Auditing code is a major part of any software project, since for some reason people have a tendency to write code with...

Suidnet – An Ongoing Solution

I come not to bury Suidnet, but to praise it. Well, that is not entirely true - there are still some significant problems with...

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