The corporate AI landscape has reached a historic inflection point. We are rapidly moving beyond the era of chatbots that simply summarize emails or draft plans, and entering the era of the AI agent—systems that don’t just assist users but take actions on their behalf across applications and the web.
These agents are transforming the browser from a viewing tool into an execution environment. They enable AI to navigate SaaS and web applications just like a human—updating records, sending emails and completing workflows automatically. The productivity potential is enormous, but the security implications are equally significant. Recognizing these risks, Gartner recently advised organizations to block AI browsers for now after vulnerabilities were discovered across several agentic browsers. Palo Alto Networks also identified a vulnerability in Chrome’s Gemini, where the side bar could be hijacked by an extension. While blocking emerging browsers like Comet or Atlas may be straightforward, restricting a widely adopted platform such as Chrome presents a far greater challenge for most organizations.
To help organizations safely adopt AI in the browser, Prisma Browser delivers a secure enterprise AI workspace where employees can interact with assistants and agents while security teams maintain full visibility and control. By embedding security directly in the browser, Prisma Browser helps organizations address the emerging risks of agentic AI.
Confronting the High-Stakes of Agentic AI
Not surprisingly, the rise of agentic AI has brought a new set of agentic-specific fears to CISOs and CIOs. A recent industry poll found that 48% of cybersecurity professionals now identify agentic AI and autonomous systems as their number one security concern for 2026.
The primary risks range from agent hijacking and sensitive data exposure to compliance violations and shadow AI usage. Here’s a closer look.
Bad Actors Can Hijack the Agent
This is a new remote control for attackers effectively turning the browser into a remote access tool for attackers, without installing malware or any additional software. By placing malicious, invisible instructions on a website or within an email that an agent reads, hackers can hijack the agent’s logic. This can force the agent to exfiltrate data or perform unauthorized tasks directly within the user's authenticated browser session.
Unintended Agent Actions
Agents inherit the user’s active session and permissions, allowing them to take rogue or unintended actions. They could modify sensitive financial records or delete files, without a human ever being in the loop to intervene.
Sensitive Data Exposure
Agents can read content, interpret prompts, and interact with multiple applications at once, and can unintentionally expose sensitive corporate information. An agent summarizing documents, interacting with SaaS applications, or querying GenAI services may inadvertently send confidential data, customer records or proprietary information outside the organization, often without the user realizing it is happening.
Identity Blind Spots & Compliance Violations
In a world of autonomous clicks, the audit trail vanishes. Enterprises currently lack the visibility to distinguish human and agent identities as well as the actions of each, effectively breaking the foundation of corporate governance and compliance.
Shadow AI & Extensions
In the absence of enterprise-grade controls, users often turn to untrusted AI tools and browser extensions that mimic agentic behavior. These extensions can access browser sessions, read page content, and interact with applications, dramatically expanding the organization's exposure beyond the reach of standard IT oversight.
Compounding these security risks is the additional vendor lock-In challenge that organizations face. Most current agentic experiences are tightly coupled to specific browser and AI provider combinations. This limits organizational choice and forces enterprises into closed, proprietary ecosystems that are difficult to secure holistically.
Prisma Browser: The Most Secure Browser for the Agentic AI Era
Addressing these challenges requires security that operates directly inside the browser to provide continuous visibility, policy enforcement and real-time protection over user actions, AI interactions and data flows. Prisma Browser closes this gap, helping organizations safely enable innovation while reducing risk exposure.
Freedom from Vendor Lock-In With Bring Your Own LLM
Prisma Browser delivers a secure AI workspace for your agentic AI of choice. A bring-your-own-model approach allows enterprises to integrate any approved AI model, whether internal, open or commercial, without being tied to a specific browser or AI provider. This enables your organization to support evolving AI strategies while maintaining consistent security, governance and user experience across models.
Embedded AI Runtime Security
To combat the threat of prompt injection and rogue activity, embedded AI runtime security analyzes prompts in real time and monitors all content the agent interacts with, applying topic and toxicity controls to detect and block malicious instructions. By interpreting AI intent and leveraging PrismaⓇ AIRSTM protections, Prisma Browser can stop hijacked agents or unsafe actions before they execute.
Guardrails on AI and Agentic Workflows
Prisma Browser introduces granular content and context controls into agentic workflows, leveraging Enterprise DLP to identify and protect sensitive data and trigger human-in-the-loop approvals. Using existing step-up multifactor authentication (MFA), and just-in-time approvals, the browser can pause an agentic workflow and require explicit human verification and approval before a sensitive transaction or data move is completed. For example, it can require human approval before data is shared between sanctioned and unsanctioned applications.
Identity-Aware Visibility and Governance
Admins can differentiate between human and AI identities in both visibility and policy. Separate identities and granular policies can be defined for humans and agents, controlling exactly what actions each is permitted to perform. At the same time, admins gain real-time visibility into agent activity—including navigation steps, data access, file transfers and application usage across SaaS, web and GenAI environments. Detailed event timelines and session records provide a complete audit trail of what actions were taken, what data was accessed, and whether those actions were performed by a human user or an AI agent.
Best-in-Class Security with Palo Alto Networks AI-Driven Security
Powered by Palo Alto Networks Advanced WildFire®, and Advanced URL Filtering Prisma Browser draws on threat intelligence from more than 70 thousand customers worldwide. Built specifically to stop evasive threats in the browser itself, Advanced Web Protection continuously scans webpages before and after they load to detect attacks that legacy tools miss. In addition, Advanced Extension Security further protects users by monitoring browser extensions for suspicious behavior and signs of compromise.
The Future of Browsers is Agentic, and It’s Secure
The shift to agentic AI is inevitable, but the risks are not. By providing a secure, central AI workspace, where employees can discover and interact with sanctioned agents, supported by a bring-your-own-model LLM approach, Prisma Browser ensures that productivity never comes at the expense of security.
Whether your team is using AI assistants or executing agentic workflows through the browser, Prisma Browser protects AI work—from the first prompt to the final autonomous action.
Ready to see the future of secure agentic browsing? Schedule a demo.