U.S. stocks opened mixed on Tuesday as traders focus on the latest inflation report. Consumer Prices broke three straight months of declines. The Labor Department says the CPI increased 0.2% in February. Taking out food and energy costs, the so-called core CPI was also up 0.2%. Google (GOOG) is getting a new CFO. Ruth Porat is leaving her post as CFO of Morgan Stanley (MS) in April. Google says she will join as CFO on May 26th. Amazon's (AMZN) Twitch is warning it may have been hacked. The game streaming site says some users' account information including credit card data could have been compromised.