Secret Double Octopus (SDO) is a cybersecurity software company that specializes in phishing-resistant passwordless authentication for enterprise environments. The company's core product is based on proprietary password alternatives for password-based legacy systems and secure communications using secret sharing algorithms, originally developed to protect nuclear launch codes.[1] SDO uses proprietary phone-as-a-token technology to prevent unauthorized use of systems while preventing identity theft.[2]
History
The company was founded in 2015 by a team of experienced entrepreneurs and security researchers.
In April 2020, the company announced a $15 million Series B round to expand their passwordless authentication and remote-access security solutions for enterprises.[3][4] Additional $15 million were raised in January 2024.[5]