Challenge

The purpose of the t2 Challenge is to have an opportunity to win free tickets to the upcoming conference.

The rules are simple: the first one to solve the Challenge will win a free ticket to the t2 conference. In addition to this, the Advisory Board will select another winner among the next ten correct answers. The criteria for the other selection is the elegance of the answer. In short, you can win with both speed and style :)

Important note: some anti-virus engines might warn that the Challenge files contain malware. That is not the case - all Challenge binaries downloaded from t2.fi are non-malicious and safe to analyze.

Hall of Fame

t2'09 Challenge Winners

• Timo Hirvonen, Finland (first one to solve the challenge, both fast and elegant)
• Mathieu Gaspard, France (best write up)

t2'08 Challenge Winners

• Florent Marceau, France (first one to solve the challenge)
• Fabrice Desclaux, France (best solution by means of technical accuracy and detail)

t2'07 Challenge Winners

• William Whistler, United Kingdom
• Fabrice Desclaux, France

t2'06 Challenge Winners

• Pasi Parviainen, Finland
• Samu Ristkari, Finland

t2'05 Challenge Winners

• Pasi Parviainen, Finland
• Matti Nikki, Finland

History

The t2 Challenge was first introduced back in 2005 and it received a huge response - T205-CHALLENGE.EXE was downloaded more than 10,000 times during the first 24 hours! The t2'05 Challenge was a reverse engineering challenge, where the task was to find a hidden message and an email address inside the executable.