A plurality of memory devices of mixed type are serially interconnected. The malware detection system is configured to determine whether the file is suspected malware by analyzing a plurality of predefined result states received in response to the first malware detection node applying the first malware detection technique to the file and a second malware detection node applying a second malware detection technique to the file. The Access Terminal then transmits to the Femto Device an identifier of a base station that controls a macro cell where the Femto Device is located.