(Bloomberg) -- Rubrik Inc., a cloud and data security startup backed by Microsoft Corp., is planning to file as soon as next week for an initial public offering, according to people familiar with the matter.Most Read from BloombergTesla’s $25,000 Car Means Tossing Out the 100-Year-Old Assembly LineBankman-Fried Is Sentenced to 25 Years in Prison Over FTX CollapseUBS Banker’s Frustration Exposes Cracks in World of Climate FinanceApple Plans New iPad Pro for May as Production Ramps Up OverseasDuba