Abstract: An agent can be installed that is separate from an unsecure application, such as a third party browser, executing on a client device. Content to be displayed by, or accessible to, the application can be rendered or determined remotely, such that only unrestricted data is received by the application. Restricted data to be stored on the device, as may include one or more authentication credentials, can be transmitted over a secure connection to the agent, which can store the sensitive information to a secure location on the client device that is inaccessible to the application. Such management allows the sensitive information to be stored on the client device and provided with requests for restricted data, for example, while preventing the restricted data from being exposed to the application on the client device.