Nahuel C. Riva, aka +NCR/CRC! [ReVeRsEr], has been participating in the information security community since 2003. He was first interested in software protection mechanisms, specially packers. He has previously worked as Exploit Writer at Core Security for 10 years and now he has joined Quarkslab. Also, he has discovered vulnerabilities in high-level enterprise software from Symantec, HP, Adobe and he authored tools like SDT Cleaner, FUU, addp and VSD. He was an instructor at the "Defeating Software Protections" training at Ekoparty several times. He likes to share what he knows with the community and that is why he has written dozens of publicly available tutorials covering software protection mechanisms and how to defeat them.