RSA Security LLC, It also organizes the annual RSA Conference, an information security conference. Founded as an independent company in 1982, RSA Security, Inc. was acquired by EMC Corporation in 2006 for US$2.1 billion and operates as a division within EMC. RSA is based in Bedford, Massachusetts, with regional headquarters in Bracknell and Singapore, and numerous international offices. Ron Rivest, Adi Shamir and Leonard Adleman, who developed the RSA encryption algorithm in 1977, founded RSA Data Security in 1982.
Zscaler is a global cloud-based information security company that provides Internet security, web security, next generation firewalls, sandboxing, SSL inspection, antivirus, vulnerability management and granular control of user activity in cloud computing, mobile and Internet of things - centric environments. As of 2015, Zscaler provides automated threat forensics and dynamic malware protection against advanced cyber threats, such as advanced persistent threats and spear phishing for more than 6,000 corporate, government and military organizations with more than 15 million paying users.