If you are into hacking and conning (as in going to conferences), the European hacker cons are about as good as they get and the CCC annual Congress is one such con. They are looking for submissions so if you can make it, well make it happen.

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The 22nd Chaos Communication Congress (22C3) is a four-day
conference ontechnology, society and utopia. The Congress offers
lectures and workshops on a multitude of topics including
(but not limited to) information technology, IT-security, internet,
cryptography and generally a critical-creative attitude towards
technology and the discussion about the effects of technological
advances on society.

The Chaos Communication Congress is the annual congress of the Chaos
Computer Club e.V. (CCC). The Congress has established itself as the
“European Hacker Conference” assembling people from all over the world.

Even more important, the Congress is a great party bringing together the
brightest heads of a variety of cultures and interests strengthening the
idea of cross-culture inspiration and borderless networking. 22C3 is fun.