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]
Awards and recognition
References
- Privacy-Preserving_Secret_Shared_Computations_using_MapReduce_IEEE_TDSC^
- Cybersecurity co Secret Double Octopus raises $15 m, Globes^
- Israeli startup Secret Double Octopus raises $15 m. to help end passwords, Jerusalem Post^
- Secret Double Octopus raises $15 million to authenticate employees without passwords VentureBeat, 2020-04-28, retrieved 2021-02-10^
- Passwordless Authentication Start-up Raises $15 million, Calcalist^
- Cool Vendors in Communications Service Provider Security Solutions, 2016 Gartner, retrieved 2020-04-06^
- Julie Bort. 50 startups that will boom in 2018, according to VCs Business Insider, retrieved 2020-04-06^
- Secret Double Octopus. Secret Double Octopus Named "Best in Class" for Enterprise Passwordless Authentication in New Aite Group Matrix Report www.prnewswire.com, retrieved 2021-06-27^
- Passwordless Authentication Leader Secret Double Octopus Wins Esteemed 2023 SINET 16 Innovator Award retrieved 2025-07-30^