Dawid Czagan is an internationally recognized security researcher and trainer. He is listed among the top hackers at HackerOne. He has found security vulnerabilities in Google, Yahoo, Mozilla, Microsoft, Twitter, and other companies. Due to the severity of many bugs, he received numerous awards for his findings.
He shares his security bug hunting experience in his hands-on training courses. He delivered security training courses at key industry conferences, such as Hack In The Box (Amsterdam), CanSecWest (Vancouver), 44CON (London), Hack In Paris (Paris), DeepSec (Vienna), NorthSec (Montreal), HITB GSEC (Singapore), BruCON (Ghent), and for many corporate clients. His students include security specialists from Oracle, Adobe, ESET, ING, Red Hat, Trend Micro, Philips, and the government sector.