IT contractors using Windows operating systems should not be too worried about the security concerns publically raised by rival firm Google.

This is the view of the editor of ComputerWorldUK.com Mike Simons, who believes that reasons Google gave for dropping the Microsoft product "did not add up".

Google told the Financial Times earlier this week that Windows use would be phased out for all employees, instead moving to the open-source Linux operating system.

The move began in January, after the firm's Chinese operation was hacked, the newspaper claims.

But Mr Simons believes the root cause of this move is actually the strong rival between Google and Microsoft, rather than any genuine fears over data protection.

"Microsoft is being challenged on the desktop by rival operating systems, but it is entrenched in FTSE 500 companies and across the public sector … Windows will remain the dominant operating system on enterprise desktops for many years to come," he concluded.