With so much data transferring over public networks, the risk to sensitive information has increased exponentially, while the increase of internet hosts continually requires additional support functions. Synchronizing Internet Protocol Security (SIPSec) focuses on a combination of theoretical investigation and practical implementation, which provides a deep understanding of Internet Protocol Security (IPSec) framework. This volume identifies the security problems facing internet communication protocols along with the risks associated with internet connection, and also proposed a model SIPSec.