Page last updated at 11:15 GMT, Monday, 6 June 2011 12:15 UK

Why personal data is at risk on unsecured public wi-fi

The BBC's technology correspondent Rory Cellan-Jones investigates how much we put our personal data at risk by storing it on servers and hard drives that are not our own.

Read Rory's thoughts about how technology is changing the world and shaping our lives.

Broadcast on Monday 6 June 2011.

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