# Chapter 2: The Evolution regarding Application Security App security as we know it nowadays didn't always are present as a conventional practice. In the early decades regarding computing, security worries centered more on physical access in addition to mainframe timesharing adjustments than on computer code vulnerabilities. To understand contemporary application security, it's helpful to search for its evolution from the earliest software problems to the sophisticated threats of today. This historical trip shows how every single era's challenges shaped the defenses plus best practices we n