Uncertainty to Strategy: Smart Custom Statuses for IT Teams
November 14, 2025

Uncertainty to Strategy: Smart Custom Statuses for IT Teams

A successful ChromeOS migration starts with a clear understanding of your enterprise application portfolio. The ChromeOS Readiness Tool performs this essential evaluation, typically classifying Windows applications as Chrome Ready, Possibly Ready, Blockers, and Unknown.

However, some applications, especially in-house, legacy, or niche software, may appear with an Unknown status. This temporary classification remains in effect while the ChromeOS Readiness Tool team continues to expand its compatibility database with new solutions and updates.

For IT administrators, 'Unknown' applications create a planning blind spot. To address this, the ChromeOS Readiness Tool now includes a Custom Readiness Status feature in the Report Generator, giving you the power to define readiness for these applications using your specialized knowledge.

Taking Control of Unknown Applications

The Custom Readiness Status feature allows administrators to manually assign ChromeOS readiness statuses to in-house or organization-specific applications marked as Unknown. By doing so, you ensure accurate categorization that reflects your organization’s actual compatibility landscape.

This means devices reliant on these applications will have a precise readiness status, such as Ready to Switch, Ready with Verification, or Blocked from Switching, which improves migration planning and decision-making.

How to Apply Custom Statuses (Step-by-Step)

Custom status settings become available in the Report Generator after the data collection period ends and the report data is ready. Follow these steps:

  1. Enable the Feature: Click on the “Regenerate” option and check the box labeled “Set Custom Readiness Status.”

  2. Access the Customization Screen: The tool will display a list of organization-specific applications identified as Unknown. 

  3. Define Status: Use the dropdown menu in the Status column to assign each application a status: Ready, Blocker, or leave as Unknown.

  4. Assign Priority: Use the dropdown in the Priority column to set a priority level: High, Mid, or Low. This helps focus migration efforts on the most critical applications first.

Managing Custom Priorities Efficiently

To streamline administration, the feature includes simple controls for managing priority levels:

  • Save Your Settings: Lock in your configured priorities for future reports.

  • Load Previous Settings: Apply priority levels from earlier report generations or assessment rounds to maintain continuity.

  • Reset Priorities: Revert to previously saved priority levels if adjustments are needed.

These tools allow administrators to manage readiness data strategically, without having to redo manual settings each round.

Contributing Securely to Tool Enhancement

While setting custom statuses, you may have the option to contribute data to improve the ChromeOS Readiness Tool database. You can consent to share the Process Name of unknown applications.

Importantly, no personal data or application usage information is shared, keeping your organization’s security and privacy intact.

Turning Unknowns into Actionable Insights

By leveraging the Custom Readiness Status feature, IT teams can transform previously unknown applications into actionable, precise data points. This ensures migration strategies are fully informed, organization-specific, and strategically prioritized, reducing uncertainty and enabling a smoother transition to ChromeOS.

Blog Editors Team

ChromeOS Readiness Tool

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MFA Stops Login Abuse. It Does Not Always Stop Session Theft.

Multi-factor authentication has become one of the most important controls in enterprise security. It reduces the risk of password-based compromise and makes it much harder for attackers to access applications using stolen credentials alone.

But MFA protects the authentication moment. It does not automatically protect every authenticated session that follows.

Once a user successfully signs in, the browser receives session cookies or session tokens that keep the user logged in across web applications. These tokens tell the application, “this user has already been authenticated.” If an attacker steals that session cookie, they may be able to impersonate the user without needing the password, the MFA code, or the user’s device.

This is why session cookie theft has become such a dangerous browser-layer threat. The attacker is not always trying to break MFA. They are trying to go around it.

How Attackers Bypass MFA With Session Cookies

Session cookie attacks usually begin after authentication has already happened. The user signs in normally, completes MFA, and receives a valid browser session. From that point onward, attackers target the session itself.

Common attack paths include:

  • Infostealer malware on the endpoint that extracts browser cookies and session data.

  • Malicious or unverified extensions that gain access to browser activity or sensitive session context.

  • Phishing pages and attacker-controlled domains that redirect users into credential or token theft workflows.

  • Outdated browsers that lack the latest protections against session theft and cookie abuse.

  • Long-running authenticated sessions where users remain logged in without frequent re-verification.

The key problem is that many enterprise controls still focus heavily on login events. But session theft happens inside the browser after the login event is complete.

That makes the browser a critical security boundary.

Why Traditional MFA-Centric Security Falls Short

MFA is still essential. The problem is assuming that MFA alone is enough.

In a session theft scenario, the attacker does not need to defeat the MFA prompt directly. They only need to steal the post-authentication token that the browser uses to maintain access. Once that token is replayed, the application may treat the attacker as the already-authenticated user.

This creates a visibility and enforcement gap. Identity systems can confirm that MFA was completed, but they may not always know whether the session token is still being used by the legitimate browser, on the legitimate device, under the right conditions.

For enterprises, this means browser posture matters just as much as identity posture. A user may have strong authentication, but if their browser is outdated, exposed to risky extensions, or accessing unsafe domains, the session remains vulnerable.

Chrome Enterprise Premium: Protecting the Browser Session

Chrome Enterprise Premium helps address this gap by bringing security controls closer to where session activity actually happens: the browser.

Chrome Enterprise Premium is a secure enterprise browsing solution that provides advanced, integrated security directly within the browser, including centralized management, threat and data protection, and Zero Trust access controls for web applications.

For session cookie risk, this matters because the browser is where authenticated sessions live. Chrome Enterprise Premium helps organizations strengthen browser-layer protection through capabilities such as malware and phishing protection, URL filtering, data protection controls, and access controls that reduce exposure across web and SaaS applications. Google’s product documentation describes Chrome Enterprise Premium as enhancing Chrome’s built-in enterprise security with configurable data loss prevention, threat protection, and secure enterprise browsing controls.

This is especially important when attackers use phishing, malicious domains, malware, or unsafe browser activity as the path to session theft. Chrome Enterprise Premium helps enforce protection at the point of browsing, instead of relying only on identity checks that already happened earlier in the session.

From Readiness Tool: Understanding Session Risk Across the Browser Fleet

Browser Insights, the Chrome Readiness Tool, gives security teams device-level visibility into browser risk before incidents occur.

Based on the current Browser Insights structure, the tool surfaces browser and extension details across Chrome, Edge, Firefox, Vivaldi, Brave, and Opera. This includes browser name, browser version, and all installed extensions.

For MFA bypass and session cookie theft, the most relevant signal is session theft vulnerability based on browser version. Outdated browsers are flagged as not protected, while current versions are confirmed as protected.

Browser Insights also shows the presence of unverified extensions, which is important because risky extensions can increase browser-layer exposure. A device is considered secure within Browser Insights when it has no unverified extensions and no access to restricted or non-HTTPS domains. The tool also supports device-level drill-down, allowing security teams to investigate specific machines where browser risk is elevated.

This makes the Chrome Readiness Tool valuable as a visibility layer. It helps security teams identify which devices, browsers, and extensions may increase the risk of session theft before attackers exploit that weakness.

Where CEP Accelerator Adds Value

CEP Accelerator turns Browser Insights findings into a prioritized Chrome Enterprise Premium deployment plan.

It does not enforce policies or detect attacks directly. Instead, it acts as a planning and visibility layer inside Browser Insights. It maps observed risks to the relevant CEP capabilities that can address them.

For MFA bypass through session cookies, this means security teams can connect findings such as outdated browser versions or unverified extensions to the CEP controls that help reduce session theft and unauthorized access risk. CEP Accelerator helps teams decide where to act first, instead of treating every browser issue as equal.

Closing the MFA Gap Starts in the Browser

MFA remains a critical defense, but it is not the final boundary. Once a session is created, attackers shift their focus from stealing passwords to stealing browser session tokens.

That makes browser visibility and browser enforcement essential.

Browser Insights helps identify where session-related risk exists across the enterprise browser fleet. Chrome Enterprise Premium provides the enforcement layer needed to strengthen browser security against phishing, malware, unsafe access, and data exposure. CEP Accelerator connects the two by helping security teams prioritize the right actions based on observed risk.

To reduce MFA bypass risk, start by finding the vulnerable browsers, outdated versions, and unverified extensions across your environment. Then use Chrome Enterprise Premium to bring protection closer to the session itself.

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AI-Generated Zero-Days: What Your Security Team Needs to Know Now

A Structural Shift in How Vulnerabilities Are Found

The emergence of AI-assisted vulnerability research has altered the economics of zero-day discovery in ways that directly affect enterprise browser security planning. What previously required specialized expertise and significant manual effort, reviewing source code, fuzzing inputs, and analyzing crash reports, can now be assisted or partially automated using large language models and AI-driven fuzzing tools. The practical result is that zero-day vulnerabilities in browser components are being identified at higher frequency and with lower barriers to entry.

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The browser is the primary target in this environment because it represents the convergence of user credentials, session tokens, enterprise application access, and sensitive data, all within a single process that is exposed to external content by design.

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  • Extension supply chain compromise allows attackers to deliver zero-day payloads through trusted extension update channels rather than requiring direct browser exploitation

Chrome Enterprise Premium: Defense Depth Against Unknown Vulnerabilities

Chrome Enterprise Premium provides multiple enforcement layers that limit zero-day impact even when the specific vulnerability is unknown. Site isolation ensures that even a successful exploit of a browser rendering component cannot automatically access session tokens and credentials associated with other origins in the same session. This architectural boundary constrains the scope of what an attacker gains from a zero-day exploit.

App-bound encryption protects stored credentials and session tokens at the browser process level. An attacker who successfully exploits a zero-day in a browser component gains a more limited foothold than in a browser without this protection, because credential extraction requires additional steps that CEP's controls are designed to obstruct.

CEP's extension governance capabilities allow organizations to enforce allowlist-based extension policies, blocking the delivery of zero-day payloads through compromised extension update channels before they reach end-user devices.

Understanding Risk with Chrome Readiness Tool

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The Widening Window Between Discovery and Patch

The enterprise patch cycle was designed for a different threat environment. Monthly patch cycles made sense when vulnerability discovery was manual, slow, and resource-intensive. AI-assisted vulnerability research has changed that timeline fundamentally. Security researchers and threat actors alike can now identify exploitable flaws in browser engines, rendering components, and JavaScript environments at a pace that outstrips the traditional 30-day patch window.

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Chrome Enterprise Premium: Isolation and Enforcement as a Risk Reduction Layer

Chrome Enterprise Premium provides browser-level controls that reduce the impact of unpatched vulnerabilities without requiring a patch to be deployed. Site isolation enforces process separation between different web origins, limiting the scope of what a successful browser exploit can access within a single session. This architectural control operates independently of whether the browser has received the latest security patch.

CEP's Safe Browsing integration and real-time URL classification prevent browsers from reaching the delivery infrastructure that exploit campaigns typically rely on. Even in a window where a browser vulnerability is known and unpatched, CEP's network-layer enforcement reduces the likelihood of successful exploitation by blocking access to the domains and resources used to deliver browser-targeted payloads.

App-bound encryption protects credential and session data from extraction even when a browser process has been partially compromised, limiting the post-exploitation value of a successful browser-level attack.

Understanding Risk with Chrome Readiness Tool

Browser Insights makes the patch gap visible at the device level. The tool assesses session theft vulnerability based on browser version, clearly distinguishing devices running current and protected browsers from those running outdated and not protected versions. This distinction is critical during any period when a known vulnerability is unpatched across the fleet.

Extension security is also surfaced within Browser Insights. Unverified and outdated extensions represent additional attack surface that can be exploited in combination with browser engine vulnerabilities. The tool covers Chrome, Edge, Firefox, Vivaldi, Brave, and Opera, providing fleet-wide visibility rather than a single-browser view.

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Where CEP Accelerator Adds Value

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Reducing Exposure When the Patch Is Not Ready

Browser isolation and policy enforcement are not substitutes for patching, but they are essential for the period when a patch is not yet deployed. Chrome Enterprise Premium provides the controls that reduce exploitability and limit post-exploitation impact. Browser Insights identifies where those controls are most urgently needed.

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How CEP Detects AI-Driven Workflows Versus Human Activity

When the Browser Can No Longer Assume a Human Is Driving

Enterprise browser security has historically been built around one assumption: a human is operating the browser. Behavioral analytics, anomaly detection, and access controls have been calibrated to human interaction patterns. AI-driven workflows break that assumption. Automated agents navigate applications, submit data, and access resources at speeds and scales that fall outside normal human behavior baselines, creating both detection gaps and new risk categories.

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Browser Insights provides the foundational visibility needed to assess AI workflow risk across the device fleet. The tool reports installed extensions across Chrome, Edge, Firefox, Vivaldi, Brave, and Opera, flagging unverified and outdated extensions that may be introducing unauthorized automation capabilities into the enterprise environment.

Session theft vulnerability assessment is based on browser version. Current browsers are confirmed as protected; outdated browsers are flagged as not protected, representing risk that automated session hijacking can exploit. Browser Insights also surfaces access to non-HTTPS and restricted domains that AI-driven workflows should not be reaching.

Device-level drill-down allows security teams to investigate specific machines where the combination of unverified extensions and outdated browsers creates the highest risk of unauthorized automated activity.

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Governing the Automated Browser Enterprise

The boundary between human and AI-driven browser activity will continue to blur as enterprise adoption of agentic tools accelerates. Browser security strategy needs to account for this shift at the policy layer, not just at the detection layer. Chrome Enterprise Premium provides that policy foundation. Browser Insights provides the visibility to identify where it is needed most.

Start by identifying risks with Browser Insights to understand where unauthorized automation and session vulnerability intersect across your device fleet.

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