Zero Trust in 2025: Securing AI-Driven Businesses
Sarah Jenkins
Chief Information Security Officer
Why perimeter-based security is fading and how Zero Trust now protects AI-heavy, hybrid environments in 2025.
In an era where remote work is the norm and cloud services are ubiquitous, the traditional "castle and moat" security model is no longer sufficient. Enter Zero Trust Architecture (ZTA).
What is Zero Trust?
Zero Trust is a security framework requiring all users, whether in or outside the organization's network, to be authenticated, authorized, and continuously validated for security configuration and posture before being granted or keeping access to applications and data.
Key Principles
- Verify Explicitly: Always authenticate and authorize based on all available data points, including user identity, location, device health, service or workload, data classification, and anomalies.
- Use Least Privileged Access: Limit user access with just-in-time and just-enough-access (JIT/JEA), risk-based adaptive polices, and data protection to help secure both data and productivity.
- Assume Breach: Minimize blast radius and segment access. Verify end-to-end encryption and use analytics to get visibility, drive threat detection, and improve defenses.
Implementing ZTA is not a one-time project but a journey. Start by identifying your most critical data and assets, then map the transaction flows. This visibility is crucial for building effective policies.
Sarah Jenkins
Chief Information Security Officer
Edmonton-based IT professional at TechOS, helping Alberta businesses stay secure, productive, and ahead of evolving technology challenges.
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