The term Zero Trust has become somewhat of a slogan, peddled by some self-proclaimed cybersecurity specialists as an upgrade that can simply be bolted on to existing setups. Sadly, it’s not understood or implemented properly. Many companies that bought into the sales pitch but still treat anything inside their network as safe by default; once a user is “in,” they’re trusted. This outdated castle-and-moat thinking of building a strong perimeter but having very weak controls inside is how a single foothold turns into full access, as shown by the most recent European Commission cloud breach.
Zero Trust, in its core, is exactly what its name suggests: it trusts nothing and no one. This way of thinking assumes that nothing is safe, not even internal users or systems. Every request gets checked, every time.
How do you create a true Zero Trust environment? We have simplified the implementation steps in this blog, but these steps should give you enough direction to get moving.
1. Ask: What systems and data would cripple your core operations if they were compromised?
Map how access flows to those systems so you can see how connections are made and enforced. This will show you where you need to apply controls and where to replace permissions that are too loosely enforced.
2. Enforce continuous verification on every request.
Your system should be constantly sniffing the session state, killing the connection if the device health flips to ‘non-compliant’ or if the identity signal becomes anomalous mid-stream. Never treat a successful handshake as a permanent green light.
3. Enforce least privilege and time-bound access.
Can users and services retain access well beyond what their role or task requires? Then permissions in your environment are too broad, increasing exposure.
Shift toward a granular, resource-level model to shrink your blast radius. This way, if a credential is leaked, the threat actor gets boxed into a tiny segment with a self-destructing access token.
4. Contain lateral movement with segmentation.
Develop the default stance of assuming that the network is already dirty. Aggressively segment your environment so that access to one system doesn’t extend beyond it. Define interaction limits per application or workload.
5. Detect abnormal behaviour and immediately act on it.
Is there an indicator of compromise, like an ‘impossible travel’ login or a bulk data egress event? Are there signals like unusual API call patterns? When a user’s risk score crosses the threshold, quarantine them immediately.
If you’re reviewing your setup, speak to Cyberanalytics. Our cybersecurity specialists can help you define and implement a Zero Trust strategy.
