Welcome to SIGFLAG

SIGFLAG is a CTF team based in Linz, organised by motivated students of JKU Linz. We regularly participate in Attack-Defense security competitions and organize IT security workshops.

Become a Hacker with SIGFLAG

This year’s BECOME A HACKER event is over. We had over 100 participants who submitted 2312 valid flags in about 4.5 hours. We hope you all enjoyed it, if you have some feedback to improve the workshop for next year, please share it with us so we can improve in the future. And if you would like to solve more and harder challenges, go ahead and join us for future CTFs.

Become A Hacker

Mailing List

If you would like to receive updates about our meetups, upcoming CTF events (1-2 mails per semester), and internal training and workshop sessions (irregularly) you should subscribe to the announcement mailing list sigflag-announce@jku.at.

Subscribe to sigflag-announce

For other inqueries, please contact info ~ at ~ sigflag.at