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Cisco thanks customers after website outage

Mistake leads to two hour outage

Mobile application security vulnerability report

Cisco is keeping schtum on how exactly it contrived to down its own website worldwide for over two hours yesterday.

Customers and other web browsers notice something was amiss yesterday morning UK time as the network giant's web presence completely evaporated, without any warning.

A Cisco statement said: "Cisco can confirm that www.cisco.com experienced an outage of just over 2 hours this morning/afternoon. This was an inadvertent result of a change made during regular maintenance - a change that has since been reversed returning www.cisco.com to normal service."

It added, "We thank our customers and partners for their patience and apologize for any inconvenience they may have experienced."

But the vendor is not saying which piece of equipment was being maintained and how an error in the maintenance procedure caused unforseen results which cascaded throughout its website infrastructure and brought it down for more than two hours.

This is a fine example of a failure in business continuity and disaster recovery by the world's leading networking supplier.

All the backup and alternative data centres across Cisco's entire global estate, and all the BC/DR processes in place were of no use at all when someone, a Cisco employee possibly, made a mistake during regular maintenance. Clearly Cisco's business continuity and disaster recovery testing scenarios had not included the event that caused the outage.

The company is not saying how much the outage cost in terms of lost e-commerce. With a site of such prominence we could well imagine it is substantial. ®

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