CISO Tribune

Vendor comparison · 2 companies

Menlo Security vs Zscaler

Menlo Security sells an enterprise browser security solution that protects users where they work and secures applications from internet-borne attacks. Zscaler sells a unified cybersecurity platform built on the Zero Trust Exchange. CISO Tribune files both under Remote browser isolation. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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Up to four companies side by side.

  • Menlo Security
  • Zscaler
Menlo Security vs Zscaler: Products, Customers and Funding Compared
Menlo SecurityMenlo Security sells an enterprise browser security solution that protects users where they work and secures applications from internet-borne attacks.menlosecurity.comZscalerZscaler sells a unified cybersecurity platform built on the Zero Trust Exchange.zscaler.com
What it sells
  • Menlo Browser Security Platform[2][3]The Menlo Browser Security Platform secures humans and AI agents, who get their jobs done in the browser.
  • AI Agent Security[3][5]Menlo AI Agent Security is part of the Menlo Browser Security Platform.
  • Menlo Browser SSE[8]Menlo Browser SSE is designed to secure internal web apps, SaaS usage, and the web activities of users.
  • Menlo File Security[14]Menlo File Security strips out active, executable content and reconstructs the file.
  • Browsing Forensics[17][18]Browsing Forensics provides details of user behavior and can be triggered by criteria that the customer chooses.
  • Menlo Browser DLP[18]Menlo Browser DLP prevents users from sharing sensitive data with GenAI tools by blocking risky uploads and text entries in real time.
  • Zscaler Zero Trust Browser[5]Extends Zero Trust to the browser.
  • Zscaler Deception[6]Zscaler Deception is used to detect machine-speed attacker behavior.
  • Zscaler AppProtection[4]Protects private apps from web- and identity-based attacks.
  • AI Guard[8]Provides an overview of the users and AI applications that AI Guard manages.
  • Zscaler Cloud Sandbox[7]Provides protection from threats not detectable using traditional security techniques.
  • Zscaler China Premium Access[4]Delivers secure connectivity for China-based employees.
Categories
Headquarters
Mountain View, United States[1]Not stated on its pages
Founded
Not stated on its pages2007[1]
Ownership and funding
Privately held[4][5][6][7][8][9][10]Public (NASDAQ: ZS)[2][4][13][14]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • March 18, 2026Menlo Security announced a Browser Security Platform intended to govern both human users and AI agents in the enterprise.[20]
  • May 21, 2026Zscaler announced its intent to acquire Symmetry Systems, a company that maps identities and data access for AI security.[12]
  • February 5, 2026Zscaler announced it has acquired SquareX to extend its Zero Trust capabilities into the browser.[13]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[14]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Its pages name large global financial institutions among the organizations that use Menlo. The Menlo Secure Cloud Browser is described as protecting users and agencies from web-borne threats. Its pages name a national healthtech agency in Singapore among the customers that onboarded to the Menlo environment.From its own pages, Zscaler sells to organisations that need secure remote access to business applications for a hybrid workforce. Zscaler extends zero trust access to private applications for users in headquarters and branch offices. Zscaler addresses government and federal cybersecurity. Zscaler addresses state and local government operations. Zscaler offers solutions for UK healthcare organisations such as the NHS. Zscaler offers a SaaS-delivered solution for China-based employees.
Last verified
November 9, 2026November 5, 2026

Where they overlap

  • Menlo Security and Zscaler are both filed under Remote browser isolation.

Where they differ, field by field

  • Menlo Security's primary category is Remote browser isolation; Zscaler's is SASE and SSE.
  • Menlo Security is also filed under Enterprise browsers and Data loss prevention. Zscaler is also filed under Zero trust network access and Firewalls and NGFW.
  • Menlo Security lists Menlo Browser Security Platform, AI Agent Security, Menlo Browser SSE, Menlo File Security, Browsing Forensics and 1 more. Zscaler lists Zscaler Zero Trust Browser, Zscaler Deception, Zscaler AppProtection, AI Guard, Zscaler Cloud Sandbox and 1 more.
  • Menlo Security is headquartered in Mountain View, United States.
  • Zscaler was founded in 2007.
  • Menlo Security is privately held. Zscaler is a public company listed on NASDAQ as ZS.

What it sells: Menlo Security

What Menlo Browser Security Platform does[2][3]
The Menlo Secure Extension delivers Browser DLP and visibility for user interactions with trusted sites and web applications. High-risk browsing activity is automatically routed to the Menlo Cloud for cloud rendering and threat elimination.
What Menlo Browser SSE does[8]
Menlo Browser SSE covers the SWG, CASB, and ZTNA security services found in SASE and SSE. In SASE and SSE, DLP is scattered among the SWG, CASB, and ZTNA services.

What it sells: Zscaler

What Zscaler Zero Trust Browser does[5]
Zscaler combines AI-based isolation of web threats with Browser Detection and Response (BDR) capabilities. Zscaler provides cloud-delivered and in-browser data loss prevention, including screenshot and keystroke logger protection. Zscaler enforces browser security through an extension, an enterprise browser, or cloud browser isolation.
What Zscaler AppProtection does[4]
Zscaler AppProtection streamlines private access management. Zscaler AppProtection is a key part of ZPA.
What Zscaler Cloud Sandbox does[7]
GHD uses Zscaler Cloud Sandbox to provide further protection from threats not detectable using traditional security techniques. A Zscaler dashboard widget shows the flow and dispensation of files sent to the sandbox.
What Zscaler China Premium Access does[4]
Zscaler China Premium Access is a SaaS-delivered solution. Zscaler China Premium Access delivers secure connectivity for China-based employees as a SaaS-delivered solution.

Questions about Menlo Security and Zscaler

What do Menlo Security and Zscaler sell?
Menlo Security sells Menlo Browser Security Platform, AI Agent Security, Menlo Browser SSE, Menlo File Security, Browsing Forensics and 1 more. Zscaler sells Zscaler Zero Trust Browser, Zscaler Deception, Zscaler AppProtection, AI Guard, Zscaler Cloud Sandbox and 1 more.
Are Menlo Security and Zscaler in the same category?
They share Remote browser isolation. Menlo Security's primary category is Remote browser isolation and Zscaler's is SASE and SSE.
Where are Menlo Security and Zscaler headquartered?
Menlo Security is headquartered in Mountain View, United States.
When were Menlo Security and Zscaler founded?
Zscaler was founded in 2007.
Who owns Menlo Security and Zscaler?
Menlo Security is privately held. Zscaler is a public company listed on NASDAQ as ZS.
Who are Menlo Security and Zscaler sold to?
Its pages name large global financial institutions among the organizations that use Menlo. From its own pages, Zscaler sells to organisations that need secure remote access to business applications for a hybrid workforce.
What have Menlo Security and Zscaler announced recently?
March 18, 2026: Menlo Security announced a Browser Security Platform intended to govern both human users and AI agents in the enterprise. May 21, 2026: Zscaler announced its intent to acquire Symmetry Systems, a company that maps identities and data access for AI security.

About Menlo Security

Menlo Security sells an enterprise browser security solution that protects users where they work and secures applications from internet-borne attacks. The Menlo Browser Security Platform secures humans and AI agents, who get their jobs done in the browser. Menlo Security focuses on securing the browser, because most enterprise work takes place there. Menlo Security states that traditional browsers operate without necessary protections from cyberthreats, exposing users to attacks.[3][12][13]

The Menlo Secure Extension delivers Browser DLP and visibility for user interactions with trusted sites and web applications. High-risk browsing activity is automatically routed to the Menlo Cloud for cloud rendering and threat elimination. Menlo executes all web traffic and content in a hardened digital twin of the user's local browser in the cloud. The Menlo Browser Security Platform treats humans and AI agents as equal participants and applies tailored policies to the needs of each. Menlo is client-free and requires no software installation, so any browser or device, managed or unmanaged, can be used.[2][3][14]

Menlo AI Agent Security is part of the Menlo Browser Security Platform. Menlo acts as a secure bridge for applications with no or deficient APIs, connecting agents and AI workflows to the applications and data they need. Menlo extends AI Agent Security to the browser agent, applying security controls and prefiltering what the sidebar can see and access. Menlo Security states that sidebars have shifted from passive assistants to active agents that can read and transmit data across open tabs.[3]

Menlo SAA provides a unified launchpad for web, SaaS, remote desktops and servers, and legacy thick-client applications. The Menlo Cloud creates a protective barrier, ensuring no endpoint can directly access application servers. Menlo SAA provides secure access through a standard browser or extension, with no need to install, configure, or manage an endpoint agent or a thick client. Menlo SAA provides secure access to any application, including legacy apps delivered as secure browser tabs. Menlo SAA extends zero trust to the browser itself, turning it into the secure enforcement point. Menlo SAA enforces DLP controls such as copy/paste, watermarking, and data redaction.[15][16]

Menlo HEAT Shield AI uses machine learning and computer vision to detect and block highly evasive threats and zero-day phishing attacks. By executing web requests in the Menlo Cloud, Menlo performs AI-based runtime analysis of the entire page, including JavaScript, DOM elements, and URLs, at the point of click. Menlo File Security assumes all files are hostile, strips out active, executable content, and reconstructs the file.[14]

Browsing Forensics provides details of user behavior and can be triggered by criteria that the customer chooses. Menlo dashboards show overall web traffic, Highly Evasive Adaptive Threat (HEAT) attacks, bandwidth use, DLP, CASB-based activities, and Secure Application Access health and user behavior. Menlo Insights produces reports on the activities that a customer wants to report. Menlo Browser DLP prevents users from sharing sensitive data with GenAI tools by blocking risky uploads and text entries in real time. Menlo lets organizations define which GenAI tools are approved for business use and automatically block or isolate all others.[17][18]

Menlo Browser SSE covers the SWG, CASB, and ZTNA security services found in SASE and SSE. Menlo Browser SSE is designed from the ground up to secure internal web apps, SaaS usage, and the web activities of users. Synapxe, Singapore's National Healthtech Agency, onboarded users to the Menlo environment. Menlo can assist organizations with implementing cybersecurity guided by the NIST CSF. The Menlo Secure Cloud Browser isolates web traffic, protecting users and agencies from web-borne threats.[3][11][12][13][15][18][19]

Menlo Security on the record

Sources

Menlo Security full record

  1. [1]Menlo security exceeds 100m arr delivers secure enterprise browser market leadershipMenlo Security · menlosecurity.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]menlosecurity.comMenlo Security · menlosecurity.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Browser Security for Humans and Agents | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  4. [4]AI Adaptive DLP | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  5. [5]Menlo Browser Security Platform | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  6. [6]Secure Enterprise Browser | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  7. [7]Threat Prevention | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  8. [8]Browser SSE | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  9. [9]Zero Trust Access | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  10. [10]Zero-Day Phishing Prevention | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  11. [11]BYOD Security | Menlo SecurityMenlo Security · undated page, accessed October 26, 2026 · Tier A
  12. [12]About Us | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]Federal Agency Security | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  14. [14]Evasive Ransomware Prevention for Enterprises | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  15. [15]VPN Replacement | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  16. [16]VDI Reduction | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  17. [17]Browsing Visibility | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  18. [18]Generative AI Security | Menlo SecurityMenlo Security · undated page, accessed November 10, 2026 · Tier A
  19. [19]Compliance SolutionsMenlo Security · undated page, accessed November 10, 2026 · Tier A
  20. [20]The Next Billion Users Will Not Be Human: Menlo Security Launches Industry’s First Browser Security Platform to Govern AI Agents | Menlo SecurityMenlo Security · published March 18, 2026 · Tier A

Zscaler full record

  1. [1]About zscalerZscaler · zscaler.com · undated page, accessed November 5, 2026 · Tier A
  2. [2]zscaler.comZscaler · zscaler.com · undated page, accessed November 5, 2026 · Tier A
  3. [3]Leading Cloud Enterprise Security Provider for Zero TrustZscaler · undated page, accessed November 10, 2026 · Tier A
  4. [4]Products & Solutions | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  5. [5]Zscaler Zero Trust BrowserZscaler · undated page, accessed November 10, 2026 · Tier A
  6. [6]Stop Frontier AI with Deception | Zscaler CybersecurityZscaler · undated page, accessed November 10, 2026 · Tier A
  7. [7]GHD Case Study | Customer Stories | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  8. [8]About AI Guard Dashboard | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  9. [9]Viewing the Cybersecurity Dashboard | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  10. [10]About Custom Dashboards | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  11. [11]About Alerts | ZscalerZscaler · undated page, accessed November 10, 2026 · Tier A
  12. [12]Zscaler to Acquire Symmetry Systems, Combining Zero Trust and Access Graph Technology to Map and Secure AI Agent Communication | Zscaler, Inc.Zscaler, Inc. · published May 21, 2026 · Tier A
  13. [13]Zscaler Acquires SquareX to Advance Zero Trust Browser Security for the AI Era | ZscalerZscaler · published February 5, 2026 · Tier A
  14. [14]Zscaler Internet Access Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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