Sidekick users sue T-Mobile over data loss

Users of Microsoft's Sidekick smartphone have sued T-Mobile over the loss of personal data caused by a server failure in Microsoft's Danger subsidiary.

Download this free guide

3 expert insights into how mobile security is evolving for business

Download this e-guide to read expert insights into how the current trends in mobile security strategy are showing a move from mobile device management, to enterprise mobile management and unified endpoint management - indicating an evolution towards a unified approach to mobile security.

Start Download

• Corporate E-mail Address:

  You forgot to provide an Email Address.

  This email address doesn’t appear to be valid.

  This email address is already registered. Please login.

  You have exceeded the maximum character limit.

  Please provide a Corporate E-mail Address.

By submitting my Email address I confirm that I have read and accepted the Terms of Use and Declaration of Consent.

By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.

You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.

Two US class-action lawsuits allege T-Mobile misled customers into believing that their data was more secure than it was, according to reports.

One lawsuit claims T-Mobile's main selling point for the device was that users would always have access to their data, which would be stored safely and securely.

Last weekend T-Mobile told Sidekick users that data not currently on their devices had most likely been lost due to a server failure at Microsoft subsidiary Danger.

The other lawsuit claims that T-Mobile's advertising did not disclose that customers' stored data may not be retrieved if there was a server failure.

T-Mobile has declined to comment on the lawsuits, but said it is confident that most data will be recovered.

Microsoft said all data will be restored and only a minority of Sidekick users are still affected.

A company spokesperson said Microsoft has improved the overall stability of the service and installed a more resilient back-up process.