There is also a 
NLUUG spring conference
Last week I attended the Dutch NLUUG spring conference about Security. The conference presented 18 talks in several tracks about mainly the technicalimplementations of security measures.
The keynote was done by Vincent Rijmen, professor at the university of Leuven and one of the inventors of the Rijndael encryption algorithm, which is the heart of AES encryption. Mr. Rijmen talked about the past and future of hash functions and about methods to break the MD5 and SHA-1 hashing algorithms.
Then I attended a talk about anonymity systems, where PhD student Matthijs Koot explained how anonymous anonymity systems like Tor, MorphMix and I2P really are.
A very interesting talk was from Carel van Straten from the Spamhaus project. The Spamhaus project tries to find out how spammers work and what to do about it. I will publish a separate article about this intriguing subject later.
Another very interesting talk was by the in The Netherlands famous German hacker Henryk Plotz. He was one of the hackers of the Mifare Classic chip card that is about to be used in The Netherlands as a train ticket system. He talked about how the Mifare card was hacked: a combination of monitoring and analyzing the wireless communications from the card and of physically looking at the chip, by polishing off the various layers of silicon and photographing and analyzing them.
After some other, a bit less interesting talks, I saw Karin Spaink. Karin talked about the security of electronic patient records (EPR's). Karin pointed out that everybody seems to want EPR's, but there is little proof these systems will introduce much better healthcare at all. EPR's bring in their own security issues and concerns. Karin lead a hacker team who broke into two hospitals (with their permission by the way) and was able to see, copy, delete and change(!) millions of patients records.
The NLUUG conference was a very interesting event and was perfectly hosted. Highly recommended.
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Master Certified IT Architect 
CISSP (Certified Information Systems Security Professional)
TOGAF Certified Architect