Tyler Wrightson Tyler Wrightson is the author of Advanced Persistent Threats and Wireless Network Security: A Beginner's Guide. Tyler is the founder and president of Leet Systems, which provides offensive security services such as Penetration Testing and Red Teaing to secure organizations against real world attackers. Tyler has over twelve years experience in the IT security field with extensive experience in all forms of offensive security and penetration testing. Tyler holds industry certifications for CISSP, CCSP, CCNA, CCDA, and MCSE. Tyler has also taught classes for CCNA certification, wireless security, and network security. He has been a frequent speaker at industry conferences including Derbycon, BSides, Rochester Security Summit, ISACA, ISSA, and others. Follow his security blog at http://blog.leetsys.com. Read More Read Less