PACTF is an online computer security competition primarily for high school students, organized and run by students at Phillips Academy in Andover, MA, U.S.A. PACTF will run from April 10–April 30. There will be three rounds, each one week long. During each round, you can pick any two-day span to solve as many problems as you can! Rounds will feature binary exploitation and reversing, cryptography, and other miscellaneous topics, with introductory and advanced problems in each category. Sign up now in teams of 1–5 at PACTF.com! Sponsored by the Abbot Academy Association at Phillips Academy and the Carnegie Mellon University CyLab Security and Privacy Institute. There may be more sponsors to be announced.

Prizes totaling over $2,000 will be awarded to the top-ranking high-school teams of each round, as well as of the entire competition.