What's in the SOSS? An OpenSSF Podcast

OpenSSF

What's in the SOSS? features the sharpest minds in security as they dig into the challenges and opportunities that create a recipe for success in making software more secure. Get a taste of all the ingredients that make up secure open source software (SOSS) and explore the latest trends at the intersection of AI and security, vulnerability management, and threat assessments. Each episode of What's in the SOSS? is packed with valuable insight designed to foster collaboration and promote stronger security practices for the open source software community.About Christopher Robinson (aka CRob), hostCRob is a 43rd level Dungeon Master and a 26th level Securityologist. He is a leader within several Open Source Security Foundation (OpenSSF) efforts and is a frequent speaker on cyber, application, and open source security. He enjoys hats, herding cats, and moonlit walks on the beach.

  1. 1d ago

    Turning AI into the Ultimate Open Source Maintainer Power Tool with Michael Winser

    In this episode of What’s in the SOSS?, host CRob welcomes back open source security champion Michael Winser to reflect on Alpha-Omega’s spectacular milestone of surpassing $20 million in security grants. Michael breaks down how their mission has evolved from simply chasing bugs to acting as a catalyst for sustainable, long-term security culture across critical projects. The two dive deep into the unsustainable economics of package repositories—the "app stores" of software development —and address how a massive partnership with frontier AI model providers is aiming to flip the script on AI. Instead of fueling endless, low-context vulnerability "slop," Alpha-Omega is working to put AI assists directly into the hands of maintainers as their ultimate defensive power tool.  Chapters: 00:24 - Welcome Back, Michael Winser!01:10 - The Origin Story of a $20 Million Milestone04:54 - Evolving Beyond Audits to "Sustainable Security"11:18 - The Messy Economics of Package Registries20:28 - Turning AI into the Maintainer’s Power Tool29:01 - Vision for 2026: The Security Trust Graph Episode links: Michael Winser’s LinkedIn pageAlpha-Omega WebsiteAlpha-Omega Public RepositoryLearn more about the Security Engineers in Residence (SEIR) Roles Andrew Nesbitt OpenSSF Securing Software Repositories Working GroupGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

    Turning AI into the Ultimate Open Source Maintainer Power Tool with Michael Winser

  2. Jul 14

    Signing the Future: Securing AI and ML Artifacts with Mihai Maruseac

    In this episode of What’s in the SOSS?, host Yesenia Yser sits down with Mihai Maruseac, the lead of the OpenSSF AI/ML Working Group and Security and Privacy expert at OpenAI, to dive deep into the unique security challenges facing artificial intelligence. Unlike traditional software packages, AI models cannot simply be inspected for malware by looking at their weights – malicious code only exposes itself upon execution. Mihai outlines how the community is answering this threat through the evolution of the OpenSSF Model Signing (OMS) specification. Discover how OMS creates an unshakeable chain of custody for models, data sets, and agent workflows, the structural shift toward implementation-agnostic toolchains, and what the future looks like for a fully realized, end-to-end secure AI supply chain. Chapters: 00:22 – Welcome: Yesenia introduces AI/ML Working Group lead Mihai Maruseac.00:51 – From TensorFlow to OpenAI: Mihai’s journey navigating open source security and AI.01:47 – Core Risks of Model Tampering: A look at hidden risks inside uninspectable model weights.03:27 – Establishing Chain of Custody: How cryptographic signatures verify file integrity from training to deployment.05:04 – Evolution of the OMS Spec: Why the community standardized on forward-compatible, framework-agnostic formats.07:17 – Tracking Iteration (v1.1 & v1.2): An overview of newly introduced security keys and community features.08:26 – Choosing Your PKI Tooling: Why the OMS specification remains highly flexible for users.10:22 – Real-World Integration: Early success stories with Kaggle, NVIDIA, and the path to PyTorch.12:42 – Looking Ahead to Version 2: Overcoming "attestation sprawl" by unifying multiple security claims.15:29 – The Ideal AI Supply Chain: Using signed artifacts with GUAC to automatically map vulnerabilities.17:09 – How to Get Involved: Immediate opportunities to contribute to signature format convergence.18:11 – Rapid Fire Segment: Mihai shares his favorite retro games, hiking, and love for Vim.19:37 – Final Words of Advice: Why contributors of all skill levels are welcome to join.Episode links: Mihai Maruseac’s LinkedIn PageOpenSSF Model Signing (OMS)OpenSSF Model Signing Spec GitHub RepoOpenSSF AI/ML Working GroupOpenSSF Guide: Visualizing Secure MLOps (MLSecOps): A Practical Guide for Building Robust AI/ML Pipeline SecurityGraph for Understanding Artifact Composition (GUAC)SigstoreIn-totoOllamaGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

    Signing the Future: Securing AI and ML Artifacts with Mihai Maruseac

  3. Jun 30

    The Heartbeat of the Kernel: Why Upstream is the Ultimate Security Strategy with Greg Kroah-Hartman

    What does it feel like to wake up and realize your weekend passion project is now the critical infrastructure powering the planet? In this episode of What’s in the SOSS?, CRob sits down with Linux kernel maintainer and open source icon Greg Kroah-Hartman. Greg takes us on a journey from his early days writing firmware for printer and hospital ATMs to managing the relentless, everyday engineering task of maintaining the Linux kernel over decades. He breaks down the realities of modern kernel security, dismantles the myth that maintainers know every single vulnerability exploit , and details how looming global regulations like the EU's Cyber Resilience Act (CRA) are shifting the compliance burden onto vendors. If your organization uses Linux, Greg has a simple, urgent message for you: stop fearing change, build your testing infrastructure, and update your systems.  Chapters: 00:03 - Welcome: Host CRob introduces Linux kernel legend Greg Kroah-Hartman.01:04 - From Printers to Richard Stallman: Greg shares his origin story in embedded engineering and his introduction to free software.  02:00 - The Weekend Driver and the Dopamine Hit: How a quick weekend project turned Greg into a lifelong kernel contributor.04:20 - Realizing Linux is Critical Infrastructure: The moment the telcos and banks moved in, signaling that Linux was everywhere.05:28 - 2005: The Year the Kernel Grew Up: Implementing stable releases, the security team, and the rule to never break user space.07:05 - What People Get Wrong About Kernel Security: Linus's mantra that "a bug is a bug," and the reality of handling 35 fixes a day.09:32 - The Historic Fear of Updating: Why lagging behind for "stability" is actually incurring massive risk.12:17 - Global Regulation and the Cyber Resilience Act (CRA): How upcoming laws are changing vendor responsibility and why the open source community is exempt.13:51 - How OpenSSF is Reducing the Burden: Applauding the cross-ecosystem collaboration that protected maintainers from onerous drafts.17:05 - Pay Your Employees to Contribute: Greg’s best piece of advice for downstream enterprises relying on open source.18:39 - Inside the Kernel Security Alias: How the ad-hoc security team handles triage and assigns CVEs.21:11 - The CVE Numbers Game: Why the kernel ranks #2 in CVE creation and the trouble with automated severity scores.25:39 - We are Already There: AI Slop and Static Analysis: Greg addresses the recent surge of AI-generated bug reports and patches.31:20 - Rapid Fire Round: Spicy food, coffee, Star Wars, and the ultimate call to action. Episode links: Greg Kroah-Hartman’s LinkedIn pageThe Linux Foundation CRA Stewards PlaybookOpenSSF Global Cyber Policy Working GroupThe Linux Kernel Archive (Keep your systems current with the latest stable kernel releases)The Value of Open Source SoftwareAdditional ResourcesGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

    The Heartbeat of the Kernel: Why Upstream is the Ultimate Security Strategy with Greg Kroah-Hartman

  4. Jun 16

    Consuming with Intent: Driving Enterprise Security and Career Growth Through Open Source with Jamie Thomas (IBM)

    In this episode of Big Thoughts, Open Sources, host CRob sits down with Jamie Thomas, IBM Enterprise Security Executive and OpenSSF Governing Board Member (former Chair!), to tackle the vital shifting dynamics of enterprise open source engagement. From IBM's historical "billion-dollar bet" on Linux to modern supply chain wake-up calls like SolarWinds and Log4j, Jamie pulls back the curtain on what it truly means to move from accidental consumption to intentional stewardship. Tune in to discover how active participation in neutral foundations like the OpenSSF acts as a fast track for engineering career trajectories, why soft skills like "the art of influence" are critical for upstream collaboration, and how organizations can protect their crown jewels while implementing a powerful "give-back strategy." Chapters: 00:00 – Intro Music + Promo Clip00:21 – Introduction & Welcoming Luminary Jamie Thomas01:32 – Wearing the Enterprise Security Hat at IBM02:10 – Supply Chain Wake-up Calls: From SolarWinds to Log4j03:14 – Unlocking Open Ecosystems: IBM’s Early History with Java and Linux05:21 – Mainframe Debates and Portability: The Evolution of Open Source Adoption06:24 – The Red Hat Acquisition and Monetizing the Developer Ecosystem08:20 – The Myth of "Free" Software: Securing Regulated Enterprise Deployment10:15 – Why a Seat at the Table Matters: The Value of Neutral Foundations11:29 – The Art of Influence: Upstream Contributions as a Career Catalyst13:50 – Moving Innovation from Open Source Kernels to Commercial Value16:12 – Storming, Norming, and Conversation: Lessons from the Kubernetes Era17:38 – Pitching Upstream Time: Helping Developers Sell Open Source to Management19:30 – Beyond Code: Bringing Domain Expertise and Soft Skills Upstream21:40 – Conquering the Chasm: Automating CI/CD Pipelines and Testing at Scale23:00 – Consuming with Intent: Active Stewardship and the OpenSSF Scorecard25:21 – Rapid Fire Round: Mainframes, AI-Generated Code, and Star Trek nostalgia27:53 – Call to Action: Crafting Your Organization's "Give-Back Strategy"Episode links: Jamie Thomas’ LinkedIn pageLearn more about IBM’s Strong History and Commitment to Open SourceRed HatEclipse FoundationCNCFGet involved with the OpenSSFLearn more about the OpenSSF Governing BoardSubscribe to the OpenSSF NewsletterFollow the OpenSSF on LinkedIn

  5. Jun 2

    The Ghost in the Dependency Tree: Navigating Open Source End-of-Life with HeroDevs

    In this episode of What’s in the SOSS, host CRob sits down with Isaac Wuest, Product Line Leader at HeroDevs, to explore the critical and often overlooked "gray area" of the software supply chain: End-of-Life (EOL) software. While the industry heavily relies on CVEs to track vulnerabilities, Isaac explains how maintainer abandonment creates a vacuum where risks are present but remain undiscovered and unreported. From the origins of HeroDevs supporting AngularJS to the nuances of the EU Cyber Resilience Act (CRA), this conversation provides a practical framework for distinguishing between inherent hazards and actual risk in your dependency tree. Chapters: 00:04 - CRob welcomes Isaac Wuest from HeroDevs 00:45 - The HeroDevs origin story: How Google sunsetting AngularJS created a need for secure drop-in replacements. 02:44 - Isaac’s path to open source: Transitioning from product management to supporting maintainers. 04:06 - Exploring the "Gap" in CVEs: Why dictionary-based vulnerability tracking misses EOL and malicious packages. 07:03 - The challenge of "Maintainer Attestation": Why most open source projects lack a formal EOL calendar. 09:52 - Compliance and Risks: How EOL dependencies create blank spots for security professionals and auditors. 11:27 - The Shark in the Tank: Using a food regulation analogy to differentiate between hazard and risk. 13:22 - Navigating the EU Cyber Resilience Act: Preparing for increased manufacturer accountability in software. 14:08 - Maintainer Abandonment: Identifying the moment a project stops receiving patches without formal notice. 16:14 - Scanning for Gaps: Why standard industry tools currently struggle to provide a complete EOL picture. 18:49 - Practical Remediation: Recommendations for researching upgrade paths using tools like endoflife.date. 20:49 - Analyzing SBOMs: How engineers can leverage free datasets to identify and fix deep dependency risks. 23:00 - Rapid Fire: Coffee, Star Wars, spicy food, and the favorite apocalyptic robot. 25:01 - Final Thoughts: A call to action for educating yourself on your application's EOL exposure. Episode links: Isaac Wuest’s LinkedIn pageHeroDevsFree Tool: End of Life Data SetCommunity Resource: endoflife.dateGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

  6. May 19

    Beginner to Builder: Shaping the Conversation in Open Source Security

    In this episode of What's in the SOSS, Yesenia Yser interviews cybersecurity analyst Ejiro Oghenekome about her journey from UI/UX design to becoming a key contributor to the OpenSSF. Ejiro shares the inspiration behind her public "100 Days of Cybersecurity" challenge, which has helped her maintain discipline and consistency while making the field less intimidating for beginners. She discusses how connecting with the OpenSSF community led her to the BEAR Working Group, where her authorship of the "Beginner to Builder" blog series has allowed her to move from consuming content to actively shaping the open source security conversation. Ejiro also offers advice to the next generation, emphasizing that open source contribution is not just about coding but is a welcoming space for anyone to learn and grow, regardless of their current expertise. Episode links: Ejiro (Sonia) Oghenekome LinkedIn pageEjiro’s GitHub pageBEAR Working GroupEjiro’s OpenSSF Beginner to Builder Blog Series:Blog #1: From Beginner to Builder: Understanding OpenSSF Community and Working GroupsBlog #2: From Beginner to Builder: Your First Code ContributionBlog #3: From Beginner to Builder: Free OpenSSF and Linux Foundation Education CoursesGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedInChapters: 00:00 - Music, Promo clip, & Welcome01:11 - Ejiro details her transition from UI/UX design to cybersecurity and connecting with OpenSSF.03:39 - Ejiro explains her motivation for starting the 100-day challenge, including receiving advice to learn publicly and a previous rejection from an internship.06:49 - Ejiro shares that she is currently on day 44 and expects to complete the challenge around April.07:50 - Ejiro discusses her biggest personal lesson: understanding consistency and discipline, and learning from the community.10:45 - Ejiro describes her authorship of the "Beginner to Builder" blog series, which shifted her from consuming content to shaping the open source conversation.15:47 - Ejiro shares the impact of her work, noting that it has made cybersecurity feel less intimidating for beginners and helped her grow in confidence.18:22 - Rapid Fire Questions: Ejiro shares her preferences on books, cooking, social media, and more.21:13 - Ejiro offers advice to the next generation, emphasizing that open source is welcoming, not just about coding, and provides great opportunities for learning and growth.24:46 - Yesenia concludes the interview, thanking Ejiro for her time and contributions

  7. May 5

    Packaging, Transferring, and Deploying Software in Air-Gapped Environments with Zarf

    Host Sally Cooper is joined by Brandt Keller, a staff software engineer at Defense Unicorns and maintainer of the OpenSSF sandbox project, Zarf. Brandt discusses Zarf's origins as a tool designed to reliably package, transfer, and deploy software components (like container images and Helm charts) specifically for critical, air-gapped environments that lack internet connectivity. The conversation explores Zarf's evolution, highlighting its current role in introducing security gates, improving transparency, and consolidating various management and S-bomb tools into a single, declarative workflow. Finally, Brandt explains how Zarf's declarative manifest model is helping to secure open source software by reducing the cognitive burden on maintainers and giving integrators confidence in upstream artifacts Chapters 00:01: Welcome and Introduction to Brandt Keller and Defense Unicorns 02:01: What is Zarf and its history: Solving the air-gapped use case 04:33: Zarf's critical function today: Security, transparency, and packaging 09:18: How Zarf has evolved: From niche tool to agnostic distribution and GitOps integration 12:07: Zarf’s role in OpenSSF and securing open source software 16:05: Rapid Fire and Call to Action (Zarf.dev) Episode links: Brandt Keller’s LinkedIn pageZarf websiteZarf GitHubCNCF Security Technical Advisory Group (TAG Security)OpenSSF Software Supply Chain Integrity Working GroupOpenSSF Project GUACDefense UnicornsGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

  8. Apr 7

    Big Thoughts, Open Sources Inaugural Episode: Beyond the Hype: Brian Fox on Securing the Agentic Future of Open Source

    In this inaugural episode of Big Thoughts and Open Sources, host Crob sits down with Brian Fox, Co-founder and CTO of Sonatype, to dissect the friction between rapid AI adoption and foundational software security. Brian shares insights from the 11th annual State of the Software Supply Chain Report, revealing the emergence of "slop squatting" and the high frequency of AI models recommending non-existent or vulnerable dependencies. The conversation explores how the Model Context Protocol (MCP) could revolutionize developer compliance and why the industry must fund the critical infrastructure supporting our trillion-dollar open source ecosystem. Chapters: 00:23 – Welcome to the inaugural episode of Big Thoughts, Open Sources.01:01 – Brian shares his journey from 2002 Apache Maven contributor to co-founding Sonatype and joining the OpenSSF board.02:53 – The conversation shifts to the critical role of Maven Central in providing global visibility into the software supply chain.03:26 – Brian reflects on a decade of security trends, noting that the "Log4Shell" pattern of using unpatched libraries has existed for years.05:34 – The "Tribal Knowledge" problem is explored, highlighting how AI agents lack the undocumented context human developers share at lunch.07:06 – Brian reveals findings from the 11th Annual State of the Software Supply Chain Report, including how AI models recommend non-existent code versions 30% of the time.08:09 – The "Slop Squatting" phenomenon is explained, where attackers upload malicious packages to match common AI hallucinations.10:03 – Brian discusses the Model Context Protocol (MCP) as a game-changer for turning security tools into expert systems for AI agents.13:42 – The dialogue warns against ignoring sixty years of software engineering "physics" in the rush to adopt AI-generated code.15:11 – Brian describes the "Vulcan Mind Meld" opportunity of injecting high-quality governance data directly into an AI agent’s decision-making process.17:19 – The experts debate the risks and rewards of our "new robot overlords" and the need for ML SecOps discipline.19:30 – Brian emphasizes that "inefficient code is still inefficient code" and warns against repeating the costly mistakes of early cloud migrations.21:01 – Advice is given on building an "AI-native SDLC" that focuses on providing security information upfront during code creation.24:18 – Brian addresses the sustainability crisis, noting that the cloud infrastructure required for modern, secure open source builds is no longer free.27:17 – The episode concludes by highlighting the eight trillion dollars of economic value produced by open source and the need to fund its core infrastructure.Episode links: Brian Fox LinkedIn pageSonatype websiteMaven Central RepositoryThe State of the Software Supply Chain ReportSonatype BlogOpenSSF AI/ML Security Working GroupWhitepaper: Visualizing Secure MLOps (MLSecOps): A Practical Guide for Building Robust AI/ML Pipeline SecurityGet involved with the OpenSSFSubscribe to the OpenSSF newsletterFollow the OpenSSF on LinkedIn

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About

What's in the SOSS? features the sharpest minds in security as they dig into the challenges and opportunities that create a recipe for success in making software more secure. Get a taste of all the ingredients that make up secure open source software (SOSS) and explore the latest trends at the intersection of AI and security, vulnerability management, and threat assessments. Each episode of What's in the SOSS? is packed with valuable insight designed to foster collaboration and promote stronger security practices for the open source software community.About Christopher Robinson (aka CRob), hostCRob is a 43rd level Dungeon Master and a 26th level Securityologist. He is a leader within several Open Source Security Foundation (OpenSSF) efforts and is a frequent speaker on cyber, application, and open source security. He enjoys hats, herding cats, and moonlit walks on the beach.

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