The perimeter cybersecurity model is like the defensive walls that surround ancient cities. For thousands of years, these walls provided stout defense against invaders arriving by horse and on foot. 

*** This is a Security Bloggers Network syndicated blog from AppSec Observer authored by Jeff Williams. Read the original post at: https://www.contrastsecurity.com/security-influencers/zero-trust-table-of-how-contrast-maps