The end of implicit trust
For decades, computer security was based on a simple premise: everything inside the corporate network is safe, and everything outside is a threat. This model, known as "perimeter defense" or "castle and moat", worked when data lived on physical servers in the office basement.
But the world has changed. The cloud, widespread remote work and the use of personal devices have dissolved that perimeter. Today, identity is the new perimeter. If we continue to trust blindly in "internal" connections, a single compromised device allows an attacker to move laterally throughout the network without being detected.
Modern Security Strategy
Implementing Zero Trust is not buying a product, it is adopting a mindset. It requires explicitly verifying every access request, no matter where it comes from. We use the principle of "least privilege", granting only the access necessary to perform a specific task.
Network segmentation is key. By dividing the network into small and controlled zones, we prevent an attacker from jumping from one system to another. In addition, continuous monitoring and behavioral analysis allow us to detect anomalies in real time.
“In cybersecurity, trust is not a virtue, it is a vulnerability. Verify always, trust never.”
Zenith Privacy
For a successful implementation, it is crucial to have total visibility of assets. You cannot protect what you do not see. Multi-factor authentication (MFA) stops being optional and becomes a mandatory requirement for every access.
Conditional Access Policy
At Primitive, we configure dynamic policies. For example, if a user attempts to access sensitive data from an unusual location, the system automatically blocks access. This is adaptive security.
A simple Zero Trust policy might look like this on a firewall:
- Source: Validated User (MFA)
- Destination: Specific Application
- Action: Permit and Inspect
- Log: Log all traffic
policy-map global_policy {
class class-default {
inspect zero-trust-proto;
police rate 100 mbps;
}
}
Adopting this model drastically reduces the attack surface and limits the impact of breaches. In an environment where threats constantly evolve, Zero Trust is the way.
Zenith Privacy
Lead Threat HunterInvestigating advanced threats and securing critical infrastructures. Obsessed with proactive defense.
English
Español