Friday, 04/19/2024 6:00pm to Sunday, 04/21/2024 6:00pm. The third annual UMassCTF will be held from Apr. 19 at 6:00 p.m. to Apr. 21 at 6:00 p.m.. This jeopardy-style virtual capture the flag will feature student and company-made challenges with a wide variety of topics including web exploitation, reverse engineering, cryptography, forensics ...