| 摘要 |
A method of preventing the infection of a computer network 1 by a computer virus which can be spread by electronic mail traffic comprises the installation of an anti-virus application (12, fig. 2) at an e-mail gateway 7 of the network, which scans incoming email traffic for known viruses according to a database of virus signatures. If a new virus is detected by the provider of the anti-virus application (12), a notification of this event is sent from the provider to the application. Upon receipt of this notification, the anti-virus application diverts incoming emails or their attachments to a buffer for safe storage. A further notification sent by the provider instructs the application to cease this prevention of delivery after a signature has been created for the new virus. The invention limits the damage caused by a new virus by distributing its updated signature as quickly as possible.
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