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Voice over Internet Protocol (VoIP) networks have freed users from the tyranny of big telecom, allowing people to make phone calls over the Internet at very low or no cost. But while VoIP is easy and cheap, it's notoriously lacking in security. With minimal effort, hackers can eavesdrop on conversations, disrupt phone calls, change caller IDs, insert unwanted audio into existing phone calls, and access sensitive information. Hacking VoIP takes a dual approach to VoIP security, explaining its many security holes to hackers and administrators. If you're serious about security, and you either use or administer VoIP, you should know where VoIP's biggest weaknesses lie and how to shore up your security. And if your intellectual curiosity is leading you to explore the boundaries of VoIP, Hacking VoIP is your map and guidebook. Hacking VoIP will introduce you to every aspect of VoIP security, both in home and enterprise implementations. You'll learn about popular security assessment tools, t
About the author
Himanshu Dwivedi is a leading security expert and researcher. He has published four books,
Hacking Exposed: Web 2.0 (McGraw-Hill),
Securing Storage (Addison Wesley),
Hacker's Challenge 3 (McGraw-Hill), and
Implementing SSH (Wiley). A founder of iSEC Partners, Himanshu manages iSEC's product development and engineering, specialized security solutions, and the creation of security testing tools for customers.
