CTFs
Upcoming
Archive
Past events
Tasks
Writeups
Calendar
Teams
Rating
Compare
Create new team
Get team members
FAQ
Contact us
For organizers
Feedback
About
Sign in
Home
/
Teams
/
Players
/
TwentyOneCool
TwentyOneCool
Mat
Capturing flags since Oct. 2019
T-shirt size:
Unknown
x
Send a message
Sign in to contact other players.
Participate in teams
Tinfoil Hats
WE_0WN_Y0U
TwentyOneCools writeups
Event
Task
Action
1337UP LIVE CTF
Mailman [433]
read writeup
SharkyCTF
Backflip in the kitchen [298]
read writeup
SharkyCTF
Noisy RSA [398]
read writeup
DawgCTF 2020
Free WiFi Part 3
read writeup
DawgCTF 2020
free wifi part 4
read writeup
DawgCTF 2020
free wifi part 2
read writeup
VolgaCTF 2020 Qualifier
Alternative [100]
read writeup
VolgaCTF 2020 Qualifier
Netcorp [100]
read writeup
Pragyan CTF 2020
Pandora [100]
read writeup
HackTM CTF Quals 2020
Prison Break [119]
read writeup
x
Sign in with
I don't remember