Guardz adds Prisma Browser to MSP security platform

Guardz has integrated Palo Alto Networks' Prisma Browser for Business into its security platform for managed service providers. The move adds browser protection to Guardz's coverage of email, identity and endpoints for small business customers.

The integration is intended to give managed service providers and Guardz's managed detection and response team a single view of activity tied to one user identity across workplace systems.

As employees increasingly use browsers to access business applications, company data and generative AI tools, the browser has become a more important control point for security teams. Guardz said attacks often move across these systems, for example when a phishing email leads a user to a fraudulent login page and exposes credentials that are then used elsewhere.

Under the integration, browser events from Prisma Browser for Business can be linked with email activity, Microsoft 365 events and endpoint telemetry inside the Guardz platform. If a user clicks a phishing link, the browser product can block the destination page while the wider platform ties that event to related signals for investigation.

Browser risk

Guardz also used the announcement to highlight research from Elli Shlomo, Head of Security Research at Guardz, on what it described as a "Man-in-the-Prompt" attack. In that scenario, a malicious or compromised browser extension alters an employee's prompt to an AI tool just before submission, inserting hidden instructions and extracting business data through the user's own authenticated session.

According to Guardz, network monitoring and data loss tools may not detect unusual behaviour because the request appears to come from a legitimate signed-in user. Prisma Browser for Business can block unvetted extensions before they interact with prompts, it said.

The integration also adds policy controls for browser-based AI services including ChatGPT, Claude and Gemini. Managed service providers can apply customer-specific restrictions on copying, pasting, uploading and downloading by website or category, and use a reporting function to monitor AI tool usage for each client, according to Guardz.

"Identity is the new center of gravity in cybersecurity, and the browser has become the primary gateway to the modern workspace. Traditional security tools operate in silos, leaving critical gaps in visibility and response," said Dor Eisner, Chief Executive Officer and Co-Founder of Guardz.

"Together with Palo Alto Networks, we're advancing a new era of identity-centric security operations, connecting signals across identity, browser, email, endpoint, and data into a unified security fabric that is powered by agents. Guardz enables MSPs to autonomously investigate, correlate, and respond to threats across the entire workspace, while giving small businesses the freedom to embrace AI securely and thrive. This is the future of cybersecurity: identity-centric, unified data fabric, and built for autonomous defense at scale," Eisner said.

MSP focus

Guardz said the product is designed for managed service providers that support small business customers and want to add browser controls without a lengthy deployment process. Setup and default configuration can be handled quickly, including through remote monitoring and management tools, it said.

An early-access user described the deployment process in practical terms. "The rollout through our RMM was super smooth. Within minutes, the Prisma Browser for Business was on every device, including their Chrome and Edge profiles, and it was quick and easy to configure and deploy," said Kevin Kehoe of Datawise Networks.

Palo Alto Networks said the browser has become where small businesses increasingly do daily work and use AI tools, but also where many common attacks begin, including phishing, malware, ransomware, and online fraud.

"Browser is the core workspace for small businesses - where business apps, AI tools, and sensitive data converge. It also where a vast majority of attacks that target small businesses originate - from phishing to ransomware to fraud & scams. Working closely with Guardz, Prisma Browser for Business delivers a secure workspace that stops advanced threats, safeguards data, and controls the use of AI across your organization. We are combining Palo Alto Networks' enterprise grade security, powered by intelligence from 70,000 customers and billions of threats blocked every day, with the wide coverage and support that Guardz provides to protect every small business," said Shivam Srivastava, Vice President of Product at Palo Alto Networks.

Guardz said its platform brings together protection across identities, email, endpoints and browsers, alongside user risk and security awareness data, to help security teams assess incidents around a single identity. The addition of Prisma Browser for Business extends that approach into browser sessions, where employees increasingly interact with SaaS applications and AI services.