A Summary of Census II: Open Source Software Application Libraries the World Depends On | MARCH 7, 2022 | Linux Foundation

"...It has been estimated that Free and Open Source Software (FOSS) constitutes 70-90% of any given piece of modern software solutions. FOSS is an increasingly vital resource in nearly all industries, public and private sectors, among tech and non-tech companies alike. Therefore, ensuring the health and security of FOSS is critical to the future of nearly all industries in the modern economy.  In March of 2022, The Linux Foundation, in partnership with the Laboratory for Innovation Science at Harvard (LISH), released the final results of an ongoing study, “Census II of Free and Open Source Software – Application Libraries.” This follows the preliminary release, “Vulnerabilities in the Core,’ a Preliminary Report and Census II of Open Source Software” in February 2020 and now identifies more than one thousand of the most widely deployed open source application libraries found from scans of commercial and enterprise applications. This study informs what open source projects are commonly used in applications warrant proactive analysis of operations and security support.   

The completed report from the Census II study identifies the most commonly used free and open source software (FOSS) components in production applications. It begins to examine the components’ open source communities, which can inform actions to sustain FOSS’s long-term security and health...."