CTFs:
2021
October
Tasteless
September
CSAW CTF Qualification Round 2021
August
RaRCTF
corCTF
WORMCON 0x01
RACTF
July
RedPwn
ImaginaryCTF
UIUCTF
June
Circle City Con
May
dCTF
April
UMDCTF
RITSEC
HackPack
FooBar
Cyber Apocalypse 2021
Angstrom
March
picoCTF
dvCTF
Zer0pts
UTCTF
Securinet
Nahamcon
February
Tenable
Trollcat
January
justCTF