Arkose: Muse sessions grew 30x in Sept; agents ID themselves <3% of time

Agents are shifting from reading the web to logging in and checking out on people's behalf. Controls haven't caught up: fewer than 3% identify themselves.

In this brief: 2 sections 1 min read

- Meta's Muse, a consumer personal agent, grew sessions more than 30x in September; other agents were roughly flat.
- Over 65% of customer sites in banking, gaming, tech, and travel saw agents log in, sign up, and check out.
- Data covers production traffic from July 1 to September 30, 2026.
- Companies can't easily tell legitimate, revenue-driving agents from malicious ones.
- Arkose argues intent, not appearance, defines risk: 96.8% of Instinct sessions looked risky but none were attacks.
- A banking CISO called it the first technology to arrive ahead of the controls.

Read full analysis on financialcontent.com

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