Try this captcha.
Posted in Security 
No Comments »
Entries Categorized as 'Security'
Try This Captcha
July 14, 2008
Workshop on Security and Human Behaviour 2008
July 2, 2008
At the moment I am especially interested in security and human behaviour (there’s a good article to start in German on zeit.de: Die Konjunktur der Ängste). Ross Anderson and Bruce Schneier were blogging about this workshop, where a lot of interesting people attended, for example James Randi.
Here is a list of all attendees and their [...]
Posted in Security No Comments »
The Six Dumbest Ideas In Computer Security
June 20, 2008
Old, but good: Marcus Ranum’s “The Six Dumbest Ideas in Computer Security”.
Posted in Security No Comments »
Hacking A Coffee Maker
June 20, 2008
Someone hacked a Jura F90 Coffee maker.
Posted in Security No Comments »
How To Open An Electronic Lock?
June 18, 2008
Just take a magnetic ring. You can find additional information here.
We had (!) such a lock at the office, but it was removed and replaced by a much more secure device
These are the kind of attacks/hacks I really appreciate, because they make us more secure. This demo shows us how easy it is [...]
Posted in Security 1 Comment »
Cracking 1024-bit RSA Key?
June 13, 2008
Kaspersky Lab is launching an international distributed effort to crack a 1024-bit RSA key used by the Gpcode Virus.
From their website:
We estimate it would take around 15 million modern computers, running for about a year, to crack such a key.
First, I don’t think they can crack a 1024-bit RSA key and second, what if the [...]
Posted in Security No Comments »
Attacks On Infrastructure
June 13, 2008
This article in Technology Review (German) describes the emerging problems of infrastructural assets like power plants when they are connected to the internet for economic reasons. When SCADA systems are controlable from remote we will experience serious attacks in future.
But not only attacks are dangerous. The more connected computers and software are the more they [...]
Posted in Random, Security No Comments »
Fax Signatures
June 3, 2008
Bruce Schneier writes about fax signatures and why they are still used though they do provide almost no security.
Posted in Security No Comments »
Windoze: “Built-In” Security Tools
May 30, 2008
For those of us who didn’t know this: Built-in Windows Command-Line Security Tools. “Built-In”, haha …
Posted in Security, Tools No Comments »
Debian’s poor OpenSSL Randomness
May 16, 2008
This is worth reading.
Update: The Debian people created a website with instructions to rollover keys. And there’s also a Perl script for testing SSH servers an other packages for vulnerabilities.
Update 2: Bruce Schneier jumped in. And here is a xkcd cartoon and some source.
Update 3: Here are some useful tips (in German).
Posted in Linux, Security No Comments »
