Barracuda Networks calls for junking some of its hardware
 

Software patch will not fix zero day

Barracuda Networks suggests that its users remove and decommission a line of affected hardware as the only way to fix a zero-day bug.

The company is struggling to combat a sprawling malware threat that appears to have undermined its email security appliances, so they can no longer be safely updated with software fixes.

Barracuda said it hired incident response firm Mandiant on 18 May after receiving reports about unusual traffic originating from its Email Security Gateway (ESG) devices, designed to sit at the edge of an organisation's network and scan all incoming and outgoing email for malware.

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