Todd McKinnon, CEO and co-founder of Okta, speaks during the BoxWorks 2019 Conference in San Francisco, California, on Oct. 3, 2019.Michael Short | Bloomberg | Getty ImagesOkta reported better-than-expected earnings and revenue on Tuesday but maintained its guidance as the identity management software vendor grapples with an uncertain economic backdrop. The stock plunged 11% in extended trading.Here's how the company did compared to LSEG estimates:EPS: 86 cents adjusted vs. 77 cents expectedReve...