Silicon Valley is responding to consumer privacy fears by launching software and devices that ensure the security of private information, reports Hannah Kuchler in San Francisco.<br /><br />Special report: http://www.ft.com/reports/cyber-security<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
