Remote Browser Isolation (RBI) hosts web browsing sessions on a remote server, shielding the user's local machine from potential cybersecurity threats. This creates a protective barrier between the internet and the user's device, thus reducing the risk of web-borne threats such as malware, ransomware, and phishing attacks.
How Remote Browsing Isolation Works
RBI contains all web-based activity within an isolated environment, separated from the user's device and the network. The browser executes and interacts with web content, including potential threats, in a secure, virtual environment or "sandbox."
- When a user tries to access a web page, the request is directed through the RBI server.
- The RBI server fetches the requested web page and executes it in an isolated environment (remote server).
- The RBI server then sends a safe, interactive media stream of the web page back to the user's local browser.
- The user can then interact with this web page as usual - clicking links, filling in forms, etc. However, any malicious code or harmful content on the web page is contained within the isolated environment and does not reach the user's device.
This way, even if a user accidentally visits a malicious website, the malware stays in the remote server and does not affect the user's device or the corporate network. After the user's browsing session is over, the remote browser environment is reset, effectively erasing any malicious activity.
How Does Remote Browser Isolation Enhance Security Compared to Traditional Browsing?
RBI dramatically enhances security compared to traditional browsing in several ways:
- Web content executed remotely: Rather than executing web content on the user's device, RBI renders all web content in a remote, isolated browser. This remote execution prevents direct attacks on the user's device.
- Protection against malware: RBI can effectively block malware, ransomware, and zero-day exploits. These threats are contained in the isolated browser and never reach the user's machine.
- General data security: In RBI, sensitive data is never exposed to the web server, reducing the risk of data breaches and unauthorized data exfiltration.
- Phishing and scam protection: Phishing websites and other scams are rendered harmless in a remote, isolated environment. The threat is contained even if a user unknowingly interacts with a malicious website.
- Safe web downloads: Some RBI solutions offer file sanitization for web downloads. They cleanse files and attachments of potential threats before sending them to the user's endpoint.
- User environment remains clean: Since all browsing activity happens remotely, the user's local environment remains clean, and there is no need for post-browsing cleanup operations.
In comparison, when it comes to traditional web browsing, web content is loaded and executed on the user's device. This approach exposes the user's device to all potential web-based threats, including malware and phishing attempts, and increases the risk of data breaches.
Therefore, RBI provides a significantly safer browsing experience.
Top Use Cases For Remote Browser Isolation
Secure Remote Working
RBI provides a secure environment for remote workers to safely access work resources and the internet without exposing their own devices or the corporate network to cyber threats.
Protection against Malware and Phishing Attacks
RBI prevents direct interaction between the user's device and potentially malicious websites. This reduces the risk of malware or phishing attacks, often utilized for stealing sensitive or personal information.
Safe Web Browsing
Organizations can use RBI to enforce safe web browsing policies. Users can access the internet for secure collaboration, research, and communication, all through the remote browser, without risking the introduction of malware to their devices.
Third-Party Access Management
When contractors, vendors, or other third parties need to access the network, RBI provides a safe and secure way for them to do so without jeopardizing the organization's network.
Bring Your Own Device (BYOD) Policies
For organizations that allow employees to use their personal devices for work, RBI provides a secure method for accessing the network and internet without requiring extensive security measures on each device.
Protection against Zero-day Attacks
RBI can isolate and buffer the organization from zero-day exploits – threats that take advantage of unknown vulnerabilities for which a patch hasn't been released yet.
Data Loss Prevention
RBI can help prevent data breaches, as no web content is directly downloaded onto a user's device. All data remains in the isolated browser and is eradicated at the end of the browsing session.
Compliance and Reporting
RBI provides a controlled environment for web browsing, making monitoring, recording, and reporting user activity easier to ensure compliance with industry regulations.
How Does Browser Isolation Protect Against Web-based Threats Like Malware and Phishing?
Remote Browser Isolation (RBI) is a cybersecurity strategy that separates browsing activities from endpoint systems, thereby reducing the risk of web-based threats. It operates by hosting a user's browsing session remotely and sending only the safe rendering information to the user's device.
Protecting Against Malware
In the case of malware, the potentially harmful code is rendered and executed in an isolated environment, preventing it from reaching or interacting with the user’s actual device or network. This way, even if a user navigates to a web page containing malicious code, the malware cannot affect the user's device, as it's restricted to the isolated browser environment.
Protecting Against Phishing
In the case of phishing, Browser Isolation can provide an additional layer of protection as user inputs, such as credentials on a login page, can be monitored and filtered. If a user tries to enter login credentials on a known or suspected phishing site, the system can alert the user, block the input, or report the incident, helping users avoid falling victim to phishing attacks.
After the browsing session ends, the isolated environment is destroyed along with any potential threats, ensuring that no traces of malicious activity remain.
Common Methods and Essential Parts of an RBI System
Essential parts of an RBI system include user authentication to validate users, web content processing to render and isolate web content remotely, and threat detection to identify and neutralize potential threats.
Two common methods used by RBI technologies to stream content are pixel pushing (sending pixelated images of the rendered webpage) and DOM reconstruction (removing any malicious code before sending the content to the local endpoint).
However, it is crucial to consider several factors when evaluating RBI solutions. These include the need for a local agent, rendering engines, support for plugins and web-based applications, operating system licensing, and virtualization models, among others.
The Different Approaches to Implementing Remote Browser Isolation
There are several approaches to implementing remote browser isolation (RBI), each with unique advantages and challenges. However, organizations should choose the approach that best suits their needs, considering factors like budget, IT resources, security needs, type of network, and end-user requirements.
Here are some of the different approaches to implementing RBI:
- Cloud-based RBI: The remote browser runs on a secure cloud server wholly isolated from end-user devices in this model. This approach allows for security updates and patches to be handled centrally. It offers scalability, but internet connectivity is essential to ensure seamless operation.
- On-Premises RBI: The isolated browsers are run on servers inside the organization's local network. This gives more control over the data and infrastructure but adds hardware and maintenance costs and doesn't provide the flexibility of a cloud solution.
- Container-based RBI: In this approach, browser processes run inside containers, which isolate the processes from the rest of the system. This approach offers protection against malware but may offer less isolation than the cloud-based or on-premises strategies.
- Endpoint-based RBI (Local Browser Isolation): This model involves virtualization or sandboxing technologies installed directly on the endpoint device. Every web session runs in a separate, disposable environment. However, this approach may require more system resources, potentially affecting device performance.
- Data Center RBI: In this approach, the isolated browsers run on servers in a data center, and the remote session is delivered to user devices. This option offers increased control but can involve significant infrastructure and maintenance costs.
- Vendor-specific RBI solutions: Many cybersecurity vendors offer their unique spin on RBI, using their proprietary technologies to isolate browsing activity differently, often combining multiple approaches.
How Does Remote Browser Isolation Impact User Experience?
Remote Browser Isolation (RBI) is a powerful cybersecurity solution designed to protect users from web-based threats by hosting their browsing sessions on a remote server. While its primary goal is to enhance security, RBI also influences the user experience in various ways, both positively and negatively.
The Benefits of RBI for Users
- Enhanced Security with Seamless Browsing
By isolating the browsing environment from the local machine, RBI significantly reduces the risk of malware infections, phishing attacks, and other web-based threats. This process occurs in the background for most users, making the browsing experience feel familiar and secure. - Peace of Mind While Browsing
Knowing that web content is safely rendered in a remote environment allows users to explore the internet without worrying about exposing their systems to potential threats. - Minimal User Disruption
Modern RBI solutions aim for transparency, replicating the look and feel of a typical browsing session. This helps reduce the learning curve for users unfamiliar with the technology.
Challenges That May Arise
- Latency and Performance Issues
Since web pages are rendered remotely and streamed back to the user, some may experience slight delays, especially with graphics-heavy content or slower internet connections. - Compatibility Concerns
Certain websites or web applications might not function perfectly in an isolated environment, leading to potential frustrations for users relying on those tools. - Adjusting to New Workflows
Although designed to be user-friendly, RBI can introduce subtle changes to browsing behaviors, which may require some adaptation.
Balancing Security and Usability
The effectiveness of RBI lies in its ability to strike a balance between robust security and a smooth user experience. Organizations implementing RBI should prioritize solutions with minimal latency and high compatibility to ensure users feel both protected and productive.
By addressing potential challenges and educating users about its benefits, Remote Browser Isolation can become an indispensable tool for securing web activity without sacrificing convenience.
Best Practices For Deploying Remote Browser Isolation In An Organization
- Assess Your Needs: Before deploying remote browser isolation (RBI), assess the organization's needs. Consider factors like the nature of the business, the kind of data you handle, and the level of risk exposure to identify where RBI could be best utilized.
- Develop a Deployment Plan: Identify which users or departments are most vulnerable to web-based cyber threats and prioritize deploying RBI in these areas. The plan should also outline the logistics of the rollout, including the timeline and support needed.
- Select the Right Solution: Different RBI solutions may be better suited to different needs. Evaluate multiple RBI vendors, considering factors like compatibility with existing infrastructure, scalability, and cost.
- Educate Users: Provide training to help users understand the purpose and benefits of RBI. Assisting users to understand the need for this technology encourages adoption and reduces resistance.
- Testing and Evaluation: Before full deployment, conduct a pilot phase where the RBI solution is implemented within a limited scope. This will identify any technical problems, employee resistance, and other potential issues.
- Regular Monitoring and Management: After deployment, regularly assess the effectiveness of the RBI solution. Gather feedback from users and use this to make any necessary adjustments.
- Update Security Protocols: Once RBI is implemented, ensure your organization's cybersecurity protocols are updated to reflect the new system. RBI should be integrated into the broader cybersecurity strategy, not treated as a standalone solution.
- Partner with a Trusted Provider: A trusted provider can offer technical support, help with deployment, and give guidance for best practices. They will also keep you up-to-date on any new developments or updates to the RBI technology.
- Continuous Learning: Cyber threats constantly evolve, so adopt a constant learning and adaptability mindset. Regularly review and assess your RBI strategies to ensure they remain effective.
- Data Back-Up: Regularly back up important data to ensure that your organization can recover quickly in the unlikely event of a breach.
How Digital Guardian Can Complement Remote Browser Isolation
Adopting RBI requires understanding the organization's unique security and operational needs. Challenges with implementation include cost, compatibility, latency, and scalability. Therefore, balancing these factors is vital to ensure minimal impact on user productivity and experience while enhancing security.
Digital Guardian can be rapidly deployed, is scalable, and integrates with legacy systems and data security solutions—like RBI—for full-spectrum data protection. Like RBI, Digital Guardian Secure Service Edge (SSE) helps protect organizations against web-based threats, but also extends traditional endpoint security to the cloud and private applications. The combined power of Digital Guardian and an RBI solution can deliver proactive protection and near-immediate time to value.
Contact us today to learn how Digital Guardian will pair with your RBI solution.
