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We interview and study famous financial billionaires, including Warren Buffett, Ray Dalio, and Howard Marks, and teach you what we learn and how you can apply their investment strategies in the stock market. We Study Billionaires is the largest stock investing podcast show in the world with 180,000,000+ downloads and is hosted by Stig Brodersen, Preston Pysh, William Green, Clay Finck, and Kyle Grieve. This podcast also includes the Richer Wiser Happier series hosted by best-selling author W ...
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Open Source Security

Josh Bressers

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Open Source Security is a media project to help showcase and educate on open source security. Our goal is to give the community a platform educate both developers and users on how open source security works. There’s a lot of good work happening that doesn’t get attention because there’s no marketing department behind it, they don’t have a developer relations team posting on LinkedIn every two hours. Let’s focus on those people and teams then learn what they do and how they do it. The goal is ...
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Presented by The Investors Podcast Network with over 10 million downloads — home to the popular We Study Billionaires podcast, The Intrinsic Value Podcast is a new show focused on breaking down businesses, estimating their intrinsic value per share, and deciding whether they should be added to an ongoing portfolio of stocks built out each week. From assessing the monopoly power of Google to determining the fair value of publicly-traded sports franchises, no topics is off limits in the pursui ...
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show series
 
Thomas DePierre joins Open Source Security to discuss the central idea from his blog post, "You are all on the hobbyist maintainers turf now," exploring the massive disconnect between the corporate world that consumes open source and the hobbyist community that actually produces it. The conversation reveals this isn't a new problem, but a long-stan…
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Daniel Mahncke and Shawn O’Malley turn their focus to Taiwan Semiconductor Manufacturing Company (ticker: TSM) — the quiet engine powering nearly every device we touch and the global AI boom. Pioneering the pure-play foundry model, TSMC went from a government-backed experiment in the late 1980s to controlling more than 90 % of the world’s leading-e…
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On today’s show, Stig Brodersen talks with co-host William Green, the author of “Richer, Wiser, Happier.” In their quest for meaningful relationships and being the best version of themselves, they discuss what has made them Richer, Wiser, or Happier in the past quarter. You’re invited to join them on their journey. IN THIS EPISODE YOU’LL LEARN: 00:…
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In this episode, Clay explores the core ideas behind Capital Returns by Edward Chancellor and Marathon Asset Management. Based on decades of investing experience, the book uncovers the capital cycle framework, which reveals how capital flows, supply dynamics, and managerial incentives drive long-term investment outcomes. Whether you're a value inve…
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Michael and Preston explore Bitcoin's foundational principles, covering digital scarcity, mining incentives, node infrastructure, and the importance of self-custody versus third-party management. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 12:13 - How Bitcoin prevents government-led currency debasement 19:14 - Why block reorganizations occur and ho…
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I chat with Aaron Lippold, creator of MITRE's Security Automation Framework (SAF), to discuss how to escape the pain of manual STIG compliance. We explore the technical details of open-source tools like InSpec, Heimdall, and Vulcan that automate validation, normalize diverse security data, and streamline the entire security authoring process. The s…
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Shawn O’Malley and Daniel Mahncke break down Nubank (ticker: NU), a leading fintech company providing credit card, banking, and insurance services to millions across Latin America, with nearly 60% of Brazil’s adult population using one of the company’s products. Nubank’s success is a true David vs.Goliath story, overcoming a powerful banking oligop…
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In today's episode, Stig Brodersen is talking stocks with Tobias Carlisle and Hari Ramachandra. Stig’s pick is Microsoft, the world’s biggest market cap company for good reason. Tobias is pitching Devon Energy, an oil and gas producer with a big upside if you’re right about the timing. Hari’s stocks of choice are Adyen and Block, two fast-growing c…
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In this episode, Clay explores Hamilton Helmer’s 7 Powers framework, breaking down each of the seven sources of enduring competitive advantage. While companies all over the world offer benefits and value to society at large, few have barriers in place that prevent competitors from easily replicating those advantages. Whether you’re an investor or b…
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Garrett Johnston shares why Bitcoin—not crypto—should be the foundation for insurance innovation. We explore regulatory friction, risk evolution, and strategic adoption for carriers and corporates. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 04:57 - How digital asset risk profiles evolve as companies scale 16:09 - The case for Bitcoin in insurance …
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I recently chatted with Andrew Nesbitt about his project, Ecosyste.ms. Ecosyste.ms catalogs open source projects by tracking packages, dependencies, repositories, and more. With this dataset Andrew is able to incredible insights into the world of open source. We chat all about how Ecosyste.ms works and how he manages to wrangle all this data. The s…
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Daniel Mahncke and Shawn O’Malley break down Amazon (ticker: AMZN), one of the most transformative companies of the modern era — a business that started as an online bookstore and ended up reshaping global commerce, cloud computing, and digital infrastructure. From innovating retail logistics to building the backbone of the internet through AWS, Am…
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On today’s episode, Kyle Grieve chats with Jon Cukierwar about his unique global investing approach focused on undiscovered companies. They delve into Jon’s high-conviction strategy, his in-depth on-the-ground research process, and how he uncovers overlooked opportunities by combining valuation, quality, and growth. IN THIS EPISODE YOU’LL LEARN: 00…
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On today’s episode, Clay is joined by Tim Koller to discuss all things valuation. Tim is the lead author of Valuation: Measuring and Managing the Value of Companies which is the #1 best-selling guide to business valuation. This book—now in its eighth edition—has sold more than one million copies, and is used as a textbook at top business schools su…
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Preston and Matthew discuss the upcoming Bitcoin Policy Summit, explore strategic financial maneuvers involving Bitcoin, dissect stablecoin impacts, and examine shifting global crypto dynamics. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 01:20 - Challenges facing the Federal Reserve’s independence 13:21 - Insights into Elon's policy influence and f…
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Daniel Stenberg, the maintainer of Curl, discusses the increase in AI security reports that are wasting the time of maintainers. We discuss Curl's new policy of banning the bad actors while establishing some pretty sane AI usage guidelines. We chat about how this low-effort, high-impact abuse pattern is a denial-of-service attack on the curl projec…
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Shawn O’Malley and Daniel Mahncke break down Shopify (ticker: SHOP), a leading e-commerce platform company enabling e-commerce merchants across the world to seamlessly manage nearly every part of their business in one place. Shopify has been locked in a power struggle with Amazon, as the two present distinct visions for the future of e-commerce: Am…
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On today’s episode, Kyle Grieve chats about one of the most iconic businesses in history—Coca-Cola—and explores its enduring competitive advantages, its remarkable turnaround under CEO Roberto Goizueta, and what Warren Buffett saw that made it one of Berkshire Hathaway’s most legendary investments. Kyle unpacks why Coke’s brand power, global distri…
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On today’s episode, Kyle Grieve chats with James and Abigail Zimmerman about the strength of growing and sustainable cash flowing businesses; the importance of strong balance sheets; how they navigate their circle of competence, and the steps they take to expand it; why simplicity is so important in an age of complexity, how they use cash as a boos…
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Explore the launch of Twenty One Capital, its strategic ties with Tether, SoftBank, and Cantor Fitzgerald, and how it compares to MicroStrategy or ETFs. Plus, Strike’s bold leap into secure Bitcoin lending. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro15:29 - How Twenty One Capital was formed and why now is the right time for a Bitcoin-native public …
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I recently had a chat with Kairo about a project he maintains called Repository Service for TUF (RSTUF). We explain why TUF is tough (har har har), what RSTUF can do, and some of the challenges around securing repositories. The show notes and blog post for this episode can be found at https://opensourcesecurity.io/2025/2025-05-rstuf-with-kairo-de-a…
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Daniel Mahncke and Shawn O’Malley break down Visa (ticker: V), the global payments powerhouse that acts as the invisible engine behind billions of transactions every day. Visa doesn’t issue cards, lend money, or handle customer accounts — instead, it operates the network that connects banks, merchants, and consumers in over 200 countries. Whether y…
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In this special celebratory episode, William Green spotlights some of the most important lessons from the greatest investor of all time: Warren Buffett. In honor of Buffett’s historic decision to retire after 60 years as Berkshire Hathaway’s CEO, William offers his thoughts on Buffett’s legacy & Berkshire’s future; he also shares powerful highlight…
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On today’s episode, Clay and Kyle give an overview of their best quality stock idea for Q2 2025. This quarter, they discuss Booking Holdings. To our surprise, Booking Holdings is the world’s largest travel company. We explore how the company built a dominant position in Europe through its network effect, asset-light business model, and sound capita…
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Andy Edstrom unpacks whether Bitcoin is truly the last asymmetric bet for companies, diving into MicroStrategy's model, capital structure risks, and Bitcoin's rising institutional role. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 03:40 - Why Michael Saylor calls Bitcoin a lifeline for “zombie companies” 05:20 - How Bitcoin’s returns compare to trad…
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William Woodruff discussed his project, Zizmor, a security linter designed to help developers identify and fix vulnerabilities within their GitHub Actions workflows. This tool addresses inherent security risks in GitHub Actions, such as injection vulnerabilities, permission issues, and mutable tags, by providing static analysis and remediation guid…
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Shawn O’Malley and Daniel Mahncke break down Adobe (ticker: ADBE), a leading software company providing end-to-end solutions for creative professionals, from design and creation to marketing and performance measurement. Through apps like Photoshop and After Effects, Adobe offers an industry-leading suite of productivity tools for creatives, includi…
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In this episode, Clay and Kyle reflect on their weekend at the Berkshire Hathaway annual shareholders meeting in Omaha and play a few of their favorite clips from the Q&A session with Warren Buffett, Greg Abel, and Ajit Jain. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 01:16 - Our thoughts on Buffett’s announced retirement of CEO at Berkshire Hatha…
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On today’s episode, Kyle Grieve breaks down the contrarian investing philosophy of Anthony Bolton, revealing how he consistently outperformed the market by combining sentiment analysis, in-depth fundamental research, and a flexible yet disciplined portfolio strategy. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 03:27 - The traits Bolton observed in …
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This episode explores Bitcoin’s emerging role as a global economic force, from its convergence as money to grid integration, payment tech, and strategic policy shifts. Preston and Parker also spotlight Zaprite's innovations for Bitcoin payments and the broader implications of CBDCs and regulatory changes. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro…
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Recently, I had the pleasure of chatting with Paul Asadoorian, Principal Security Researcher at Eclypsium and the host of the legendary Paul's Security Weekly podcast. Our conversation dove into the often-murky waters of embedded systems and the Internet of Things (IoT), sparked by a specific vulnerability discussion on Paul's show concerning refer…
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Daniel Mahncke and Shawn O’Malley break down Mercedes-Benz (ticker: MBG), one of the world’s most iconic automakers known for luxury, engineering, and performance. From the invention of the automobile to perfecting the engineering craft, Mercedes has shaped the way the world moves — and it wants to continue to do so, now with a stronger focus on EV…
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On today’s show, Stig Brodersen talks with legend value investor Mohnish Pabrai. Since its inception in 1999, one dollar invested in the flagship fund would have turned into $13.63 vs. $6.19 for the S&P 500. In the special interview, you can join Mohnish and Stig’s metaphorical restaurant and together taste new wonderful dishes in investing and lif…
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In this episode, Clay dives into Buffett and Munger Unscripted by Alex Morris. This book is a treasure trove of timeless investing wisdom from decades of Berkshire Hathaway annual meetings. The episode highlights Warren and Charlie’s most powerful lessons on capital allocation, business quality, temperament, and how to achieve long-term investing s…
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This episode explores how Bitcoin investors can build resilient portfolios, respond to economic slowdowns, and make smarter money and time decisions. Expert insights on real estate trends, estate planning, and hedging strategies round out a comprehensive discussion. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 03:45 - The sustainability of Bitcoin's…
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Dimitri Stiliadis, CTO from Endor Labs, discusses the recent tj-actions/changed-files supply chain attack, where a compromised GitHub Action exposed CI/CD secrets. We explore the impressive multi-stage attack vector and the broader often-overlooked vulnerabilities in our CI/CD pipelines, emphasizing the need to treat these build systems with produc…
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Shawn O’Malley and Daniel Mahnke break down Comfort Systems (ticker: FIX), a specialty contracting company providing installation and maintenance services for the electrical, HVAC, and plumbing needs of schools, hospitals, apartment buildings, restaurants, data centers, manufacturing facilities, and a range of other customers. Comfort Systems is so…
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Stig has invited legend investor Chris Bloomstran from Semper Augustus to teach us how to value Berkshire Hathaway on today's show. Semper Augustus has an outstanding track record with a compounded annual growth rate of 11.4% on equities since its fund's inception on 2/28/1999, compared to 8.2% for the S&P 500. IN THIS EPISODE YOU’LL LEARN: 00:00 -…
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On today’s episode, Kyle Grieve explores the DNA of Amazon by tracing Jeff Bezos’s early influences, strategic decisions, and relentless focus on customer experience, revealing how a bold vision and founder-led culture built one of the most dominant businesses in history. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 02:12 - How Bezos’s childhood bri…
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Alex Gladstein unpacks the hidden power dynamics of financial privilege, the shifting terrain of surveillance, and why Bitcoin might be the most unexpected tool in the fight for human rights IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 08:23 - Why self-custody is essential to the philosophical core of financial freedom 13:12 - How grassroots Bitcoin…
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I chat with Alan Pope about the open source security tools Syft, Grype, and Grant. These tools help create Software Bills of Materials (SBOMs) and scan for vulnerabilities. Learn why generating and storing SBOMs is crucial for understanding your software supply chain and quickly responding to new threats like Log4Shell. The show notes and blog post…
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Shawn O’Malley and Daniel Mahncke break down Uber (ticker: UBER), a ubiquitous tech giant that has changed how the world travels. Uber became profitable annually for the first time in 2023, and as its user growth accelerates, the company appears to be achieving modest economies of scale, making it an increasingly attractive business. In this episod…
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In this episode, William Green chats with Christopher Begg, an exceptional hedge fund manager who is the CEO & CIO of East Coast Asset Management. Chris has also taught for many years at Columbia Business School, where he teaches the prestigious Security Analysis course that Warren Buffett took with Ben Graham in 1951. Here, Chris discusses how to …
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In this episode, Clay explores the book Thinking in Bets by Annie Duke, a guide to making better decisions under uncertainty. Drawing from her career as a professional poker player, Annie shares how to separate decision quality from outcomes and avoid the trap of “resulting.” Clay also discusses how our brains are wired for certainty, why embracing…
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Perianne Boring and Brian Estes join the show to break down today’s most pressing crypto issues—from rising tariffs and DOJ coin audits to the White House Digital Asset Summit. They share insights on the evolving market structure, the future of stablecoin legislation, and how Washington is shaping the next phase of digital finance. Plus, a look at …
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Aaron Frost explores the overly complex world of vulnerability identifiers for end of life software. We discuss how incomplete CVE reporting creates blind spots for users while arming attackers with knowledge. The conversation uncovers the ethical tensions between resource constraints and security transparency, highlighting why the "vulnerable unti…
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Daniel Mahncke and Shawn O’Malley break down Nike (ticker: NKE), the global leader in athletic footwear and apparel. With a legacy built on innovation, iconic athlete endorsements, and a brand that resonates across generations, Nike has long been a dominant force in the sportswear industry. But after years of consistent success, the company is now …
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On today’s episode, Kyle Grieve dives deep into Mohnish Pabrai’s The Dhandho Investor, unpacking its nine core principles through vivid case studies and personal reflections to help investors embrace simplicity, asymmetric bets, and the power of cloning proven ideas. IN THIS EPISODE YOU’LL LEARN: 00:00 - Intro 03:34 - Why buying an existing busines…
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On today’s episode, Clay is joined by Niklas Sävås to discuss the business model of serial acquirers. A serial acquirer is a company that grows primarily by repeatedly acquiring other businesses as a core part of its strategy. Over the past two decades, many serial acquirers have proven to be profitable investments in the stock market including Con…
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 Wall Street veteran and macro expert, James Lavish, and Preston Pysh have a candid back and forth about the Trump tariffs and what the impact in game theory looks like moving forward. They also talk about how it's impacting fixed income, equities, and Bitcoin. Plus how the U.S. might navigate things from here and what's expected ahead. IN THIS EPI…
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