Chrome 142 introduces a shift in the process isolation policy from locking processes to a site like `https://example.com` to locking them to a specific origin, such as, `https://foo.example.com`. To further enhance security, Chrome is moving to a more granular process isolation model called **Origin Isolation**. Previously, Chrome used **Site Isolation**, which grouped different origins from the same site (for example, `https://a.example.com` and `https://b.example.com`) into a single renderer process. With **Origin Isolation**, each individual origin (for example, `https://foo.example.com`) will be isolated in its own renderer process. This change strengthens Chrome's security architecture by better aligning process boundaries with the web's fundamental origin-based security model, offering greater protection against potential vulnerabilities within sites. **Potential performance considerations**: While each individual process will be smaller, this increase in process granularity may lead to higher overall memory and CPU usage. To balance security and performance, Origin Isolation will be enabled by default only on devices with at least 4GB of RAM. **Enterprise Control**: Admins can control this feature using the [OriginKeyedProcessesEnabled](https://chromeenterprise.google/policies/#OriginKeyedProcessesEnabled) policy.