Daniel W. Dieterle has over 20 years of IT experience and has provided various levels of IT support to numerous companies from small businesses to large corporations. He enjoys computer security topics, and is an internationally published security author. Daniel regularly covers some of the latest computer security news and topics on his blog Cyberarms.wordpress.com. Daniel can be reached via e-mail at <cyberarms@live.com> or @cyberarms on Twitter.

Silvio Cesar Roxo Giavaroto is a professor of Computer Network Security at the University Anhanguera S?o Paulo in Brazil. He has an MBA in Information Security, and is also a CEH (Certified Ethical Hacker). Silvio is also a maintainer of www.backtrackbrasil.com.br.

Adriano Gregório is fond of operating systems, whether for computers, mobile phones, laptops, and many more. He has been a Unix administrator since 1999, and is always working on various projects involving long networking and databases, and is currently focused on projects of physical security, and logical networks. He is being certified by MCSA and MCT Microsoft.

Javier Pérez Quezada is an I + D Director at Dreamlab Technologies. He is the founder and organizer of the 8.8 Computer Security Conference (www.8dot8.org). His specialties include: web security, penetration testing, ethical hacking, vulnerability assessment, wireless security, security audit source code, secure programming, security consulting, e-banking security, data protection consultancy, consulting ISO / IEC 27001, ITIL, OSSTMM version 3.0, BackTrack 4 and 5, and Kali Linux. He has certifications in: CSSA, CCSK, CEH, OPST, and OPSA. Javier is also an instructor at ISECOM OSSTMM for Latin America (www.isecom.org).

Ahmad Muammar WK is an independent IT security consultant and penetration tester. He has been involved in information security for more than 10 years. He is a founder of ECHO (http://echo.or.id/), one of the oldest Indonesian computer security communities, and also a founder of IDSECCONF (http://idsecconf.org) the biggest annual security conference in Indonesia. Ahmad is well known in the Indonesian computer security community. He also writes articles, security advisories, and publishes research on his blog, http://y3dips.echo.or.id.