Tedi Heriyanto currently works as a principal consultant in an Indonesian information security company. In his current role, he has been engaged with various penetration testing assignments in Indonesia and other countries. In his previous role, he was engaged with several well-known business institutions across Indonesia and overseas. Tedi has an excellent track record in designing secure network architecture, deploying and managing enterprise-wide security systems, developing information security policies and procedures, performing information security audits and assessments, and providing information security awareness training. In his spare time, he manages to research, learn, and participate in the Indonesian Security Community activities and has a blog http://theriyanto.wordpress.com. He shares his knowledge in the security fi eld by writing several information security books.