Israël Hallé has been exploiting challenges in security CTFs for the past years as part of the DCIETS while he was an undergraduate student, taking the first place at the two last edition of the NorthSec CTFs. Recently, he's been contracting for Google where he served as a reverse engineer for the SafeBrowsing team. With the other trainers, Israël has been working on the mruby-engine bug bounty by Shopify where he found a few critical vulnerabilities that lead to remote code execution. When not in front of his computer, he's likely busy either drinking craft beer or climbing rocks and boulders.