Today is GreHack 2021!

CTF has started

The #postchall has started, join now here.

Stream is Live !

Now live here

Join us on IRC @ Libera #grehack21 for QA.

Save the date for GreHack 2021

The 9th edition of GreHack will hold on November 19th, 2021 and will be online.

Workshops registration is open!

GreHack 2021 Workshops are now available, see this link for more detail.

Call for Paper is closed!

GreHack 2021 Call for Paper is now closed! Thank you all.

Call for Paper is open!

GreHack 2021 Call for Paper is now open! Please check this link for more information on how to submit your work!