# Chapter 2: The Evolution regarding Application Security Application security as many of us know it right now didn't always can be found as an elegant practice. In the particular early decades associated with computing, security problems centered more upon physical access and even mainframe timesharing controls than on code vulnerabilities. To appreciate modern day application security, it's helpful to find its evolution from the earliest software problems to the sophisticated threats of right now. This historical voyage shows how every era's challenges formed the defenses and even best pra