Sometimes—but only within limits you should verify before connecting an agent. An AI agent can use the access granted by its app connection, and it may also encounter hostile instructions hidden in emails, documents, web pages, or other content it reads. Start by matching permissions to one specific task, choose read-only access when it is enough, and require independent approval for consequential actions.
What to check before connecting an app
- Define the task and the minimum access it needs. Name the app, the data the agent needs, and the actions it must perform. An agent that summarizes messages may need to read only the relevant messages—not access unrelated accounts, folders, or administrative controls. OWASP recommends limiting agents to the minimum necessary tools and scoping permissions for each tool, including read versus write access and the resources it can reach (OWASP AI Agent Security Cheat Sheet).
- Inspect the consent screen, not just the product description. Check whether the connection can read, create, edit, send, delete, or administer—and which resources those permissions cover. If the screen bundles broad access or does not explain a permission clearly, pause and look for a narrower option. Labels and available scopes vary by app and integration; no specific consumer app’s current consent screen is established here.
- Prefer read-only access when reading is all the task requires. OWASP’s excessive-agency guidance gives the example of an email assistant that only needs to summarize incoming mail; read-only OAuth access can remove unnecessary write permissions (OWASP LLM06:2025 Excessive Agency). Read-only is not risk-free: the agent may still expose sensitive material in its responses or logs.
- Assume content the agent reads is untrusted. A malicious instruction can be placed in an email, document, web page, or tool output and try to redirect the agent. NIST describes this as agent hijacking: the system fails to keep trusted instructions separate from untrusted external data (NIST, “Agent Hijacking: Understanding and Preventing LLM-Based Attacks”, January 2025). A benign user request or system prompt alone cannot guarantee that external content will not manipulate the agent. Limit what tools it can call and enforce permissions outside the model’s reasoning.
- Require separate approval for consequential actions. Look for confirmation before the agent sends a message, shares a file, deletes data, makes a purchase, changes settings, or performs an administrative action. Approval should identify the specific action and target, and come from a person or separate policy control—not from the agent authorizing itself. OWASP identifies excessive autonomy and abuse of high-impact actions as risks and recommends explicit authorization for sensitive operations (OWASP AI Agent Security Cheat Sheet).
- Understand the credential behind the connection. Find out whether the integration uses a delegated account, API key, bearer token, or another credential; who can access it; how long it remains valid; and how to revoke or rotate it. NIST warns that agents carrying API keys and bearer tokens between tools and networks can expose them to leakage or unauthorized use, and recommends building on established identity practices (NIST agent identity and authorization guidance, 2026). The right implementation depends on the service.
- Locate the disconnect and access-review controls. Before granting access, find the service’s authorized-apps or integrations page and the agent’s disconnect control. After a trial, remove a connection you no longer need. OWASP recommends reviewing permissions periodically to catch privilege creep; the exact revocation steps depend on the app and provider.
- Check oversight and records for higher-impact use. Determine whether a person must approve sensitive actions and whether the service records what the agent accessed and did. Security guidance supports authorization and oversight, but does not establish that every consumer agent provides complete audit logs.
How to compare agent integrations
If you are choosing among products, use these criteria to inspect current documentation and the actual consent screen. They are security checks, not a tested ranking of vendors.
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| What to compare | What to look for |
|---|---|
| Permission granularity | Can access be limited by action—such as read, write, send, or delete—and by resource, such as a specific mailbox, folder, workspace, or record? |
| Credential controls | Are credentials scoped and manageable? Can you see who can use them and revoke access? Do not assume integrations handle tokens the same way. |
| Action oversight | Does a person or separate policy control have to approve sensitive actions? Can an administrator enforce that boundary? |
| Input and tool boundaries | Can the service limit which tools the agent can call and prevent external content from triggering actions without authorization? |
Why limited access matters
Least privilege reduces what an agent can do if it misunderstands a request, is manipulated by content it reads, or misuses a connected tool. OWASP’s agent guidance describes risks including prompt injection, tool abuse, data exfiltration, memory poisoning, excessive autonomy, and sensitive-data exposure. Its practical controls include minimizing available tools, scoping each tool’s permissions, and requiring explicit authorization for sensitive operations. The Australian Cyber Security Centre’s 2026 prerequisite guidance likewise recommends least privilege, secure protocols, safe defaults, and threat modelling when adopting agents (Australian Cyber Security Centre guidance on agentic AI security).
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These checks apply to both personal and workplace accounts, but the consequences and governing policies can differ. The agent, app, account type, and jurisdiction matter; permission scopes, token controls, approval behavior, and interfaces can change. Verify the current provider documentation and consent screen for the exact connection you are about to make.
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