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Glossary
AI agents and bots are both automated software, but an AI agent acts autonomously and adaptively on a user’s behalf toward a goal, while a traditional bot runs predefined, repetitive scripts. The distinction matters because it breaks the old security assumption that automation can simply be blocked.
For years, "bot" meant unwanted automation to detect and stop. AI agents complicate that, because some automation is now explicitly authorized by the user and legitimately transacting on their behalf.
A traditional bot follows fixed instructions: scrape this page, stuff these credentials, submit this form. It is predictable and, when malicious, something to block. An AI agent reasons, plans multi-step tasks, adapts to what it encounters, and can act across systems, booking, buying, managing accounts, sometimes with the user’s genuine authorization. It behaves far more like a human user pursuing a goal than a script running a loop.
Bot detection historically asked "is this automation?" and blocked what was. In an agentic world that question is insufficient, because a customer’s sanctioned agent is automation you must allow, while a malicious or hijacked agent is automation you must stop. The security question shifts to intent and authorization: is this agent acting for a real user, within what it is permitted to do? That is a harder, newer detection problem than classic bot blocking.
What’s the difference between an AI agent and a bot?
A bot runs predefined scripts; an AI agent acts autonomously and adaptively on a user’s behalf toward a goal.
Why does the distinction matter?
Some AI-agent automation is authorized by the user, so "block all automation" no longer works; you must judge intent and authorization.
How do you tell a good agent from a malicious one?
By its authorization (what it’s permitted to do) and behavioral/intent signals, not just whether it’s automated.
Related: AI Agents / Agentic AI · Agentic Fraud · Bot Detection · AI Agent Detection · Non-Human Identity (NHI)