System and method for providing network security to mobile devices

A method comprising:

• storing in security system memory a security policy identifying one or more trusted networks and defining when to forward network data intended for a mobile device to the mobile device for processing by at least one mobile device processor of the mobile device, the at least one mobile device processor of the mobile device being different than a security system processor of the security system,
• the security policy defining that when the mobile device does not reside on any of the one or more trusted networks identified by the security policy, the security system processor of the security system will scan the network data for malicious content to decide whether the network data should be forwarded to the mobile device,
• the security policy defining that when the mobile device resides on any of the one or more trusted networks identified by the security policy, the security system processor of the security system will allow the network data to be forwarded to the mobile device without the security system processor of the security system scanning for the malicious content;
• receiving from the mobile device particular network data before the at least one mobile device processor of the mobile device processes the particular network data, the particular network data having been forwarded to the security system by the at least one mobile device processor of the mobile device;
• and
• executing security code to implement the security policy as it relates to the particular network data received from the mobile device, the executing the security code including modifying at least a portion of the particular network data before delivering the particular network data as modified to the mobile device.

A security system comprising:

• security system memory storing a security policy identifying one or more trusted networks and defining when to forward network data intended for a mobile device to the mobile device for processing by at least one mobile device processor of the mobile device, the at least one mobile device processor of the mobile device being different than a security system processor of the security system,
• the security policy defining that when the mobile device does not reside on any of the one or more trusted networks identified by the security policy, the security system processor of the security system will scan the network data for malicious content to decide whether the network data should be forwarded to the mobile device,
• the security policy defining that when the mobile device resides on any of the one or more trusted networks identified by the security policy, the security system processor of the security system will allow the network data to be forwarded to the mobile device without the security system processor of the security system scanning for the malicious content;
• means for receiving from the mobile device particular network data before the at least one mobile device processor of the mobile device processes the particular network data, the particular network data having been forwarded to the security system by the at least one mobile device processor of the mobile device;
• and
• security code configured to implement the security policy as it relates to the particular network data received from the mobile device, the security code configured to modify at least a portion of the particular network data before delivering the particular network data as modified to the mobile device.