Hewlett-Packard Development Company, L.p.

Hewlett Packard Enterprise Development LP

Matthew Murray Williamson

Andrew Patrick Norman

Jonathan Griffin

Aled Justin Edwards

John Melvin Brawn

John M Brawn

Requests to send data from a first host within a network of hosts are monitored against a record of destination hosts that have been sent data in accordance with a predetermined policy. Destination host identities (not the record) are stored in a buffer. The buffer size is monitored to determine whether requests from the first host are pursuant to viral activity therein.

Propagation of viruses through an information technology network

Requests to send data from a first host within a network of hosts are monitored against a record of destination hosts who have been sent data in accordance with a predetermined policy. Destination host identities not the record are stored in a buffer. The buffer size is monitored to establish whether requests from the first host are pursuant to viral activity therein.

A method of operating a first host within a network of a plurality of hosts. Over the course of a first time interval, requests received at the first host from a second host to send data to destination hosts are monitored. Identities of destination hosts monitored during the first time interval are compared with destination host identities in a record. Then, either data relating to requests which identify a destination host not in the record are stored in a storage buffer. Or the passage of data from the second host to the destination host within the network is limited over the course of the first time interval, so that during the first time interval the second host is unable to send data to more than a predetermined number of hosts not in the record.

Propagation of viruses in a network having a plurality of hosts is restricted. Network activity of a first host of the plurality is monitored, and a first record established which is at least indicative of identities of hosts within the network contacted by a first host. Contact of the first host to other hosts within the network is limited over the course of a first time interval, so that during the first time interval the first host is unable to contact more than a predetermined number of hosts not in the first record. The method further includes an additional selection process for determining hosts of the plurality the first host is allowed to contact.

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Bristol, United Kingdom

Matthew Murray Williamson