The "least privilege" security principle is insufficient for AI agents because they can be social-engineered to misuse their technical permissions. Governance requires "measured autonomy," a form of semantic containment that restricts what an agent *should* do, not just what it *can* do, to shrink its potential blast radius.

A practical security model for AI agents suggests they should only have access to a combination of two of the following three capabilities: local files, internet access, and code execution. Granting all three at once creates significant, hard-to-manage vulnerabilities.

Before allowing an AI agent to write data or take actions (like sending emails), connect it with read-only permissions to your systems (e.g., calendar, inbox). Observe its behavior for several weeks to build trust and understand its failure modes. This phased approach minimizes the risk of unintended consequences.

Securing AI agents requires extending the concept of 'least privilege' (access to data) to 'least agency' (scope of autonomous actions). This OWSAP-coined term means an agent should only be granted the minimum capability to perform its function, constraining its potential 'blast radius' if compromised.

Instead of relying on flawed AI guardrails, focus on traditional security practices. This includes strict permissioning (ensuring an AI agent can't do more than necessary) and containerizing processes (like running AI-generated code in a sandbox) to limit potential damage from a compromised AI.

Instead of a binary human-in-the-loop decision, enterprises should use an "autonomy budget" for agents. Actions are classified by risk (e.g., irreversibility, financial impact) to determine the level of freedom, creating a spectrum from full autonomy to required human approval, avoiding agents becoming expensive suggestion boxes.

An AI agent capable of operating across all SaaS platforms holds the keys to the entire company's data. If this "super agent" is hacked, every piece of data could be leaked. The solution is to merge the agent's permissions with the human user's permissions, creating a limited and secure operational scope.

AI agents can cause damage if compromised via prompt injection. The best security practice is to never grant access to primary, high-stakes accounts (e.g., your main Twitter or financial accounts). Instead, create dedicated, sandboxed accounts for the agent and slowly introduce new permissions as you build trust and safety features improve.

A critical, non-obvious requirement for enterprise adoption of AI agents is the ability to contain their 'blast radius.' Platforms must offer sandboxed environments where agents can work without the risk of making catastrophic errors, such as deleting entire datasets—a problem that has reportedly already caused outages at Amazon.