Client Health Validation Using Historical Data

Implementations of client health validation using historical data are described. In one implementation, historical data on a client, such as a laptop, attempting to access a network is scanned. The historical data can come in many forms, including cookies and application data caches saved on the client. The historical data can be used to assess a health of the client. For example, if historical data stored in an application data cache indicates interactions between the client and a website known to disseminate malicious agents, the client can be assessed to have unacceptable health. Alternately, if the historical data indicates that the client has not interacted with enough suspicious sources to constitute a danger to the network, the client can be assessed to have acceptable health. In such a case, the client can be allowed to access the network.