Enterprise security remains trapped in an outdated model. Companies still focus on protecting endpoints—the devices themselves—while attackers increasingly exploit the browser where actual work happens.

Browser-based attacks have surged sharply over the past two years. Gartner projects 85% of enterprise workloads will run through browsers by 2027. Yet most organizations defend against threats using architecture designed for a different era.

Shioupyn Shen, founder and CEO of CloudMosa, identifies the disconnect. Traditional endpoint security assumes work happens locally on devices. That assumption breaks when employees access company systems through web applications, cloud services, and SaaS platforms. A compromised browser session gives attackers direct access to business data and systems, bypassing endpoint defenses entirely.

The vulnerability runs deep. A malicious script, phishing attack, or compromised extension operates within the browser's trust boundary. Once inside, it can steal credentials, intercept data, manipulate applications in real time, and move laterally through cloud infrastructure. Endpoint protection sees none of this activity.

CloudMosa's Puffin Cloud Security represents a category of emerging defenses built specifically for browser security. Rather than protecting the device, these tools secure the browser session itself. They can isolate risky content, control what scripts execute, monitor data flows, and apply granular access policies at the browser level.

The shift reflects reality: enterprise computing has moved to the cloud. Employees rarely access resources directly from their devices anymore. They authenticate into web portals, edit documents in cloud apps, and access APIs through browsers. Security must follow.

Legacy endpoint-focused tools struggle here because they lack visibility into browser-level threats. A user's laptop might be patched and clean while their browser session runs malicious code. These tools also cannot implement the fine-grained controls needed for browser-based work, such as preventing screenshot abuse within a specific