IT Security related
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www.pulltheplug.org
"PullThePlug.org is a non-profit organization aimed at nurturing the growth and development of the information security field through community-wide research and development projects, lectures and wargame servers."
Very friendly and helpful community, challenging wargames
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The UCSB international Capture The Flag
An innovative and fun "hacking" contest amongst universities all over the world. I participated three times as part of the RWTH Aachen University team "0ld Eur0pe".
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RedTeam Pentesting
A penetration testing team that originated at the Laboratory for Dependable Distributed Systems at the Department for Computer Science of RWTH Aachen University and now started a business.
Aachen
Webcomics
Software I use
People