Photos: Inside Sophos Labs 
Published: 29 Nov 2005 12:30 GMT
The outside of the Sophos building, designed by company's two chief executives, near Oxford. It's called 'The Pentagon' because of its security features. The moat around the outside is to stop ram raiders, while the car park contains wedges that can be raised to prevent a vehicle from leaving in the event of a physical attack.
For the full story on what goes on in The Pentagon, read our feature.












