The acquisitive storage giant announced late Thursday that it will acquire RSA Security for about $2.1 billion, just hours after news broke that EMC and at least one other bidder were in negotiations to buy RSA for at least $1.8 billion. EMC said the acquisition adds identity and access management solutions and encryption and key management software to EMC’s information-centric security portfolio. In a statement, EMC Chairman, President and CEO Joe Tucci said, “Information security is a top priority among executives around the world, and it has become an inseparable attribute of information management. Businesses can’t secure what they don’t manage, and when it comes to securing information, that means simply two things — managing the data and managing access to the data.” Tucci said the acquisition “signals a fundamental change in the landscape of the security market.