Microsoft has bolstered the security features of its commercial Office 365 products with more powerful encryption capabilities. The new feature, called Customer Lockbox, available to Office 365 customers, gives users increased control over the level of access they provide to Microsoft employees. The announcement, made during the annual RSA security conference in San Francisco on Tuesday, is intended to ease security concerns regarding the use of its cloud products. "As a cloud services provider, we recognize that organizations understandably want to have full control over access to their content stored in cloud services," two Microsoft managers wrote in a blog post. Shares of the software company closed down 0.6% to $42.62 on Tuesday. They fell another 0.3% in premarket trade on Wednesday.
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