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# DEF CON CTF Hackers around the world want to compete in DEF CON CTF. How do they get there? By winning or getting into the top spots of a competition accepted by Legit BS. ## Contests that qualify for DEF CON CTF 2017 * [DEF CON CTF](https://legitbs.net/) Attack-Defense Fri, 05 Aug. 2016, 18:00 UTC 51 hours * Only available to teams that already qualify * [RuCTFE](https://ructfe.org/) Attack-Defense November 12, 2016 at 10:00 UTC 9 hours * [HITCON CTF](http://ctf.hitcon.org/) November 4, 2017 02:00 UTC 48 hours * [33C3 CTF](https://archive.aachen.ccc.de/33c3ctf.ccc.ac/) Dec 27, 2016 20:00 UTC 48 hours * [Boston Key Party](http://bostonkeyparty.net/) [.party domain](http://bostonkey.party/) Feb 25, 2017 01:00 UTC 48 hours * [UCSB iCTF](https://ictf.cs.ucsb.edu/) .edu only Attack-Defense [source](https://github.com/ucsb-seclab/ictf-framework) March 3, 2017 17:00 UTC 24 hours * [PlaidCTF](http://plaidctf.com/) April 21, 2017 21:00 UTC 48 hours * [DEF CON CTF Qualifiers](https://legitbs.net/) April 29, 2017 00:00 UTC 48 hours * 10 teams qualify and they aren't necessarily the top 10 teams from this event since many of them qualify in different events How do they win these competitions? By practicing regularly. * [CTFTime](https://ctftime.org/) * [CTF Write Ups 2016](https://github.com/ctfs/write-ups-2016/) [2017](https://github.com/ctfs/write-ups-2017/) [2015](https://github.com/ctfs/write-ups-2015/) [2014](https://github.com/ctfs/write-ups-2014/) [2013](https://github.com/ctfs/write-ups-2013/)
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