Cybersecurity
Zero-trust architecture
What zero trust actually means beyond the marketing — identity-centric access, microsegmentation, and how teams migrate from perimeter security.
Zero trust replaces the old castle-and-moat model — trust everything inside the network perimeter — with a per-request rule: never trust, always verify. Every access decision is made fresh against identity, device posture, and context, regardless of network location. NIST SP 800-207 is the canonical reference, and CISA's Zero Trust Maturity Model is the framework most enterprises and US federal agencies now plan against.
In practice zero trust is a multi-year migration, not a product you buy. Notifire tracks the components that make it real: identity-aware proxies and ZTNA replacing VPNs, microsegmentation limiting east-west lateral movement, continuous device-posture checks, and the service-to-service identity layer (mTLS, SPIFFE/SPIRE, service mesh) that extends the same principle inside the cluster.
Latest briefings on Zero-trust architecture
Infra
Cloudflare Tool Migrates Security Setups in Hours
Cloudflare has released a new open-source tool to help companies move to its Zero Trust security platform. It includes automated logic to migrate from competitors like Zscaler and Palo Alto Networks, cutting migration times from months to hours.
Ashish Kale ·
Security
From Firewalls to AI Security
The cybersecurity landscape has transformed over the past two decades. What began as simple perimeter defense with firewalls and antivirus has evolved into a complex, AI-driven industry. This shift reflects fundamental changes in threats, technology, and the move to cloud infrastructure.
Neeraj Dhiman ·
AI
Enterprise Security Gets an AI Upgrade
Enterprise security is moving beyond traditional firewalls. The future involves AI-orchestrated defenses and hyper-segmented networks to contain threats more effectively. This shift represents a more sophisticated, proactive approach to protecting corporate data and infrastructure from increasingly advanced cyberattacks.
Neeraj Dhiman ·
Security
MFA alone is no longer enough
Security experts are warning that MFA alone is insufficient against sophisticated attacks. Phishing campaigns are increasingly targeting Microsoft 365 access tokens, allowing attackers to bypass MFA entirely. These attacks use specialized kits, highlighting a critical evolution in identity-based threats for organizations.
Neeraj Dhiman ·
Security
Rethink Security Beyond User Identity
Traditional identity verification is no longer enough to stop sophisticated attacks. Attackers are increasingly using stolen session tokens and compromised devices to bypass logins. Security strategies must evolve to include continuous device verification, making it a critical component of any modern Zero Trust security framework.
Neeraj Dhiman ·
Frequently asked questions
What is zero-trust architecture in plain terms?
A security model where no user, device, or service is trusted by default just because it's inside the network. Every access request is authenticated, authorised, and evaluated against identity and context before being granted, and access is scoped to the minimum needed. The reference standard is NIST SP 800-207, and CISA's maturity model is the usual planning framework.
How is zero trust different from a VPN?
A VPN grants broad network access once you authenticate — get on the VPN and you can reach everything routable. Zero trust replaces that with per-application, per-request access through an identity-aware proxy (ZTNA), so a compromised credential or device exposes only the specific resources that identity is authorised for, not the whole network. This drastically shrinks the blast radius of a breach.
What is microsegmentation?
Dividing the network into small zones — often down to individual workloads — with explicit policies for which can talk to which. It limits east-west (lateral) movement, so an attacker who compromises one host can't freely pivot across the environment. In Kubernetes this is enforced with network policies and service-mesh authorization; eBPF dataplanes like Cilium make identity-aware segmentation practical at scale.
Where do teams start a zero-trust migration?
Usually with strong identity: enforce phishing-resistant MFA, consolidate on a single identity provider, and add device-posture checks. From there, replace the highest-risk VPN access with a ZTNA proxy, inventory east-west traffic, and introduce microsegmentation incrementally. It's a phased program measured against a maturity model, not a single cutover.