"The current state of network security is overly permissive, allowing virtually unrestricted communication between devices on the assumption that they’re trusted because they’re “inside.” This is because internet protocol-based networks were built on the premise that everything should be able to talk to every other thing on that network. It’s why the internet is so fast, but it also means that the bad guys have unfettered access to all systems once a business is breached. Conversely, zero trust is founded on the premise that any node on the network cannot connect with any other without being expressly allowed. Trust is never assumed, whether an entity operates within or outside an organization. Every attempt to gain access must be authenticated, authorized and validated. This methodology is not just a trend but an industry response to the need for robust security at a time when remote work has become the norm. Arista’s approach to zero trust aligns with guidelines provided by the U.S. Cybersecurity and Infrastructure Security Agency, which advocates for granular security controls. This translates into setting up safeguards around each critical digital asset, a concept known as microperimeter security. Arista sets up individual secure zones using switches at the network’s edge. Therefore, each part of the network is protected or separated without requiring multiple firewalls." https://siliconangle.com/2023/11/09/arista-partners-zscaler-jump-zero-trust-networking/