Gunter Ollmann

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Recent articles by Gunter Ollmann

The wolf in Granny’s bed 

The wolf in Granny’s bed

By Gunter Ollmann, 12 June 2006 4:31 PM
The latest concern is custom malware that targets internal desktops, writes Gunter Ollmann
Breaking up the attack 

Breaking up the attack

By Gunter Ollmann, 7 April 2006 12:44 PM
The industry must learn about packet fragmentation techniques, writes Gunter Ollmann
Sony opens Pandora’s box 

Sony opens Pandora’s box

By Gunter Ollmann, 8 March 2006 9:27 AM
The furore caused by Sony’s rootkit was just the start of its problems, writes Gunter Ollmann
The Common Vulnerability Scoring System: Get your threat priorities right 

The Common Vulnerability Scoring System: Get your threat priorities right

By Gunter Ollmann, 6 March 2006 7:04 PM
Over the years, I’ve seen and used a diverse range of methods to evaluate and explain the risks associated with a particular security threat or vulnerability. Depending on the ...
Wolves in sheeps’ clothing 

Wolves in sheeps’ clothing

By Gunter Ollmann, 25 January 2006 12:32 PM
Don’t assume that little threats will not grow up into serious vulnerabilities, warns Gunter Ollmann
Get your priorities right 

Get your priorities right

By Gunter Ollmann, 9 December 2005 3:49 PM
With a bit more effort, threats can be more accurately assessed and prioritised, says Gunter Ollmann
Get ready to learn the truth 

Get ready to learn the truth

By Gunter Ollmann, 11 November 2005 4:17 PM
More access to code means people are bound to be finding more flaws, says Gunter Ollmann
Get ready to learn the truth 

Get ready to learn the truth

By Gunter Ollmann, 21 October 2005 4:04 PM
More access to code means people are bound to be finding more flaws, says Gunter Ollmann
Worms twist to a new tune 

Worms twist to a new tune

By Gunter Ollmann, 5 September 2005 3:00 PM
August’s exploits point to a new level of ability in worms and hackers, says Gunter Ollmann
Pharming for DNS flaws 

Pharming for DNS flaws

By Gunter Ollmann, 29 July 2005 2:12 PM
Pentesting now builds in the latest tricks. But there’s still more to do, says Gunter Ollmann
Even the lifts are listening 

Even the lifts are listening

By Gunter Ollmann, 1 July 2005 12:50 PM
When did you last check the security of your door-control system, wonders Gunter Ollmann
Measure twice, cut once 

Measure twice, cut once

By Gunter Ollmann, 21 June 2005 11:08 AM
Stress testing before buying is another reason firms need pentesting, says Gunter Ollmann
Reading a different script 

Reading a different script

By Gunter Ollmann, 13 May 2005 4:59 PM
Hacking client-side scripting is a doddle, but it needn’t be a security hole, says Gunter Ollmann
Builders can’t always fix it 

Builders can’t always fix it

By Gunter Ollmann, 19 April 2005 10:53 AM
As the pressure increases to get vital security fixes out in double-quick time, so do mistakes, says Gunter Ollmann
Small flaws… big claws 

Small flaws… big claws

By Gunter Ollmann, 16 March 2005 1:51 PM
It’s all too easy to let minor security problems get sidelined, warns Gunter Ollmann, but they need attention
Paper over online cracks 

Paper over online cracks

By Gunter Ollmann, 21 February 2005 5:32 PM
Online authentication security is vital, but much of it can be carried out in a paper review, says Gunter Ollmann
The dangers of zero-day  

The dangers of zero-day

By Gunter Ollmann, 7 January 2005 11:22 AM
We hear a lot about new vulnerabilities, but as Gunter Ollmann explains, there are still plenty waiting for a patch
New gadgets, new rules 

New gadgets, new rules

By Gunter Ollmann, 2 December 2004 5:12 PM
The growth of mobile messaging devices means firms need to update usage policies, advises Gunter Ollmann
Insecurity starts at home 

Insecurity starts at home

By Gunter Ollmann, 12 November 2004 5:16 PM
Stop bashing Microsoft and take a closer look at the applications you write in-house, advises Gunter Ollmann
The fine art of patience 

The fine art of patience

By Gunter Ollmann, 15 October 2004 4:21 PM
Gunter Ollmann explains why testing your system before it is ready is a time-wasting and expensive experience
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