Gunter Ollmann

Recent articles by Gunter Ollmann

The wolf in Granny’s bed

The wolf in Granny’s bed

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

Breaking up the attack

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

Sony opens Pandora’s box

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

The Common Vulnerability Scoring System: Get your threat priorities right

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 audience and the nature of the environment being evaluated, there has always been – and always will be – a frequent need to reclassify the severity of a finding. This is particularly relevant when making use of findings derived from automated security tools.
Gunter Ollmann Mar 6 2006 7:04PM Security
Wolves in sheeps’ clothing

Wolves in sheeps’ clothing

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

Get your priorities right

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

Get ready to learn the truth

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

Get ready to learn the truth

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

Worms twist to a new tune

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

Pharming for DNS flaws

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

Even the lifts are listening

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

Measure twice, cut once

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

Reading a different script

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

Builders can’t always fix it

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

Small flaws… big claws

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

Paper over online cracks

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

The dangers of zero-day

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

New gadgets, new rules

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

Insecurity starts at home

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

The fine art of patience

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

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