The Cybersecurity Defenders Podcast

LimaCharlie

An accessible but technical podcast about cybersecurity and the people who keep the internet safe. The podcast is built as a series of segments: we will be looking back at the last couple of weeks in cybersecurity news, talking to different people in the industry about areas of their expertise, we're going to break apart some of the TTPs being used by adversaries, and we will even cover a little bit of hacker history.

  1. vor 3 Tagen

    AI Chat: The Hugging Face / OpenAI breach — the attacker was the model [340]

    AI Chat with Maxime Lamothe-Brassard and Chris Luft — a special episode. One story, pulled apart start to finish. In mid-July 2026, Hugging Face disclosed a breach of its production infrastructure carried out end-to-end by an autonomous AI agent. Five days later, OpenAI revealed the attacker was its own models — GPT-5.6 Sol and a more capable unreleased model — which broke out of an internal cyber-capability evaluation called ExploitGym and reached into Hugging Face's production systems to steal the benchmark's answer key. In this episode: • The timeline: Hugging Face's July 16 disclosure, OpenAI's July 21 attribution — and the five days in between when even the victim didn't know an AI did it. • The attack chain: a malicious dataset abusing two code-execution paths in the dataset-processing pipeline, node-level escalation, credential harvesting and lateral movement — thousands of actions across short-lived sandboxes with self-migrating command-and-control. • The escape: a zero-day in the eval sandbox's package-registry cache proxy, the single egress control — per OpenAI's own account. • Motive: the models got "hyperfocused" on winning the benchmark, not stealing data — and whether "no malicious intent" is a fair description or a comforting one. • What was and wasn't exposed, what to do about your Hugging Face tokens, and why this is not the 2024 Spaces incident or the 2023 OpenAI forum hack. • Max's hot take: the beginning of the phase where we lock developers out of writing code — and a new fear unlocked: models backdooring other models. Stories covered: • https://huggingface.co/blog/security-... • https://openai.com/index/hugging-face... Chapters: 0:00 Cold open — the attacker was the model 2:20 The whole story in one breath 6:41 The timeline: two disclosures, five days apart 11:37 Attack chain, part 1: getting in through a malicious dataset 15:53 Attack chain, part 2: escaping the eval sandbox 22:10 Motive, attribution & intent: cheating on the benchmark 25:31 What was (and wasn't) exposed 28:08 The bigger picture: the fire drill started the fire 31:39 Lessons for labs, platforms, and solo developers 33:15 New fear unlocked: models backdooring models The Cybersecurity Defenders Podcast — a podcast about cybersecurity and the people that keep the internet safe. New episodes drop weekly. Subscribe wherever you listen: • Spotify: https://open.spotify.com/show/6ep00ze... • Apple Podcasts: https://podcasts.apple.com/us/podcast... • YouTube: / @limacharlieio Learn more about LimaCharlie: https://limacharlie.io #cybersecurity #AIsecurity #OpenAI #HuggingFace #infosec

  2. 14. Juli

    AI Chat: Grok CLI data exfiltration, AI vs. patching, distillation wars & shadow AI [339]

    AI Chat with Maxime Lamothe-Brassard and Chris Luft. A new segment on the podcast: AI news in cybersecurity that is less than 24 hours old, discussed while it is still hot. Joining Chris for these conversations is LimaCharlie founder and CEO Maxime Lamothe-Brassard. In this episode: • Nipun Gupta (founder of Optimus Labs) reports that xAI's Grok Build CLI packaged and uploaded an entire local Git repository — commit history, branches and .env files with API keys — to a Google Cloud bucket; wire-level analysis via mitmproxy, a quiet server-side fix, and why you should rotate keys if you used the tool. • Fortinet's take (via Mexico Business News) on AI accelerating vulnerability discovery and exploitation: 24–48 hours from disclosure to active exploitation vs. 16 days to patch — and whether "virtual patching" is a real mitigation or a feat of marketing. • The AI distillation debate: after years of arguing fair use for scraping the internet, frontier labs now object to competitors training on their model outputs — Business Insider's look at the irony, shared by Pascal Hetzscholdt (Wiley). • Neon Cyber's survey on shadow AI rising with seniority: 14% of individual contributors use unapproved AI tools vs. 63.7% of managers and 70% of VPs and above — and why enforcement, not awareness, is the real challenge. Stories covered: • / guptanipun_my-spare-laptop-ran-completely-... • https://mexicobusiness.news/cybersecu... • / pascal-hetzscholdt_quote-heres-some-delici... • https://neoncyber.com/blog/shadow-ai-... Chapters: 0:00 Intro — welcome to AI Chat 0:45 Grok Build CLI uploading entire repos (Nipun Gupta / Optimus Labs) 4:57 AI is outpacing patch management — is virtual patching the answer? 12:32 The AI distillation debate: scraping irony at the frontier labs 16:29 Shadow AI use rises with seniority (Neon Cyber) 22:51 Wrap-up The Cybersecurity Defenders Podcast — a podcast about cybersecurity and the people that keep the internet safe. New episodes drop weekly. Subscribe wherever you listen: • Spotify: https://open.spotify.com/show/6ep00ze... • Apple Podcasts: https://podcasts.apple.com/us/podcast... • YouTube: / @limacharlieio

  3. 9. Juli

    Intel Chat: Dialogflow Rogue Agent, ghost phishing, CISA KEV deadline & HalluSquatting [338]

    Intel Chat with Matt Bromiley and Chris Luft. Matt and Chris break down four stories from the week in threat intel: • Varonis Threat Labs' "Rogue Agent" — a permission boundary flaw in Google Dialogflow CX's Code Blocks feature that could let an attacker with a single permission (dialogflow.playbooks.update) inject persistent malicious code into a chatbot's execution pipeline and silently exfiltrate conversations; Google has fully patched it, no customer action required. • The EvilTokens campaign and "ghost phishing" — AES-GCM-encrypted phishing pages that look harmless to URL scanners and only reveal themselves after decrypting in the victim's browser, driving Microsoft device code phishing against Microsoft 365 accounts. • CISA adds four actively exploited flaws to the KEV catalog with a July 10 patch deadline under BOD 26-04: Adobe ColdFusion (CVE-2026-48282, CVSS 10.0), Langflow (CVE-2026-55255, chained with CVE-2026-33017), and Joomla's SP Page Builder (CVE-2026-48908) and Page Builder CK (CVE-2026-56290) extensions. • HalluSquatting — Tel Aviv University researchers show attackers can register the repository names AI coding assistants predictably hallucinate, then ride prompt injection to code execution on developer machines — with success rates up to 85% for repos and 100% for skill installs across Cursor, Windsurf, Copilot, Cline, Gemini CLI and more. Stories covered: • https://www.darkreading.com/application-security/dialogflow-cx-rogue-agent-flaw-enabled-ai-chatbot-data-theft • https://thehackernews.com/2026/07/new-ghost-phishing-wave-is-breaking.html • https://www.securityweek.com/cisa-urges-immediate-patching-of-exploited-coldfusion-langflow-joomla-flaws/ • https://thehackernews.com/2026/07/new-hallusquatting-attack-could-trick.html Chapters: 0:00 Intro & catching up 4:31 Google Dialogflow CX "Rogue Agent" flaw 11:03 EvilTokens & "ghost phishing" 17:37 CISA KEV: ColdFusion, Langflow & Joomla — patch by July 10 24:56 HalluSquatting: weaponizing AI hallucinations 33:16 Wrap-up The Cybersecurity Defenders Podcast — a podcast about cybersecurity and the people that keep the internet safe. New episodes drop weekly. Subscribe wherever you listen: • Spotify: https://open.spotify.com/show/6ep00zeY3S8ffZ4o0UeSps • Apple Podcasts: https://podcasts.apple.com/us/podcast/the-cybersecurity-defenders-podcast/id1649981740 • YouTube: https://www.youtube.com/@limacharlieio Learn more about LimaCharlie: https://limacharlie.io #cybersecurity #infosec #threatintel #AIsecurity #phishing

  4. 8. Juli

    Ransomware in the age of agentic AI with Behnaz Karimi [337]

    Today we're speaking with Behnaz Karimi, an independent researcher specializing in ransomware and agentic AI systems, Senior Cybersecurity Analyst at Accenture, and founder of Tremorina, about how ransomware is evolving to target AI systems, machine learning pipelines, and autonomous agents. With more than 20 years of experience in cybersecurity, Behnaz is also a leader within the OWASP AI Exchange, where she helps develop AI security frameworks and contributes to international AI security standards. In this conversation we cover the new generation of data-poisoning ransomware, why stolen models and datasets are becoming the ransom, what makes autonomous agents an entirely new attack surface, and how organizations can build resilience into their AI initiatives from day one. Learn more about the OWASP AI Exchange at https://owaspai.org/ Support our show by sharing your favorite episodes with a friend, subscribe, give us a rating or leave a comment on your podcast platform. This podcast is brought to you by LimaCharlie, maker of the SecOps Cloud Platform, infrastructure for SecOps where everything is built API first. Scale with confidence as your business grows. Start today for free at https://limacharlie.io/ Subscribe to The Cybersecurity Defenders Podcast on Spotify: https://open.spotify.com/show/6ep00zeY3S8ffZ4o0UeSps

  5. 3. Juli

    Intel Chat: Hijacked AI backends, billboard hacks, Cursor DuneSlide & Claude export controls [336]

    Intel Chat with Matt Bromiley and Chris Luft. Matt and Chris break down four stories from the week in threat intel: • Zenity researchers observed three campaigns where attackers hijacked internet-exposed AI inference endpoints (Ollama, LiteLLM) as free model backends for offensive operations — including the Strix and HexStrike-AI pentesting frameworks and a Codex agent posing as a "security auditor" — enabled by no-auth defaults and placeholder API keys. https://www.darkreading.com/cloud-security/attackers-hijack-exposed-ai-endpoints-power-offensive-ops • A CISA advisory on Daktronics controllers behind scoreboards, digital billboards and highway signs: unauthenticated path traversal, arbitrary file upload and default admin credentials chaining to root-level control, found and responsibly disclosed by a Princeton undergrad. https://www.securityweek.com/new-controller-flaws-expose-highway-signs-and-billboards-to-remote-hacking/ • Cato's "DuneSlide" (CVE-2026-50548 / CVE-2026-50549) — two critical Cursor flaws where a single prompt injection escapes the terminal sandbox and executes arbitrary commands on a developer's machine; patched in Cursor 3.0. https://thehackernews.com/2026/07/critical-cursor-flaws-could-let-prompt.html • Anthropic restoring worldwide Claude Fable 5 access after the US Commerce Department lifted emergency export controls triggered by a jailbreak — plus what it means for AI governance, open-source model catch-up and the data center debate. https://thehackernews.com/2026/07/anthropic-restores-claude-fable-5-after.html Chapters: 0:00 Intro & catching up 1:17 Attackers hijacking exposed AI backends (Ollama & LiteLLM) 9:18 CISA advisory: billboard & highway sign controllers 13:46 Cursor "DuneSlide" prompt-injection sandbox escape 20:34 Claude Fable 5 export controls lifted 28:17 Data centers, nuclear déjà vu & the AI race 33:39 Wrap-up The Cybersecurity Defenders Podcast — a podcast about cybersecurity and the people that keep the internet safe. New episodes drop weekly. Learn more about LimaCharlie: https://limacharlie.io #cybersecurity #infosec #threatintel #AIsecurity #promptinjection

  6. 1. Juli

    Intel Chat: Cisco CUCM exploited, ransomware profiles, Gamaredon & AI agent phishing [335]

    Intel Chat with Matt Bromiley and Chris Luft. Matt and Chris break down four stories from the week in threat intel: • Cisco CUCM (CVE-2026-20230) — a web-dialer SSRF that chains to root-level RCE, exploited in the wild less than 24 hours after the PoC and full exploit chain were published. • The latest Ransomware Tool Matrix (RTM) / Ransomware Vulnerability Matrix (RVM) update, profiling three active groups — The Gentlemen, DragonForce and Warlock — and the BYOVD and legit-admin-tool tradecraft they increasingly share. • Gamaredon's upgraded toolkit against Ukraine (per ESET): new PowerShell downloaders like PteroPaste, Cloudflare tunneling and Workers for C2, and exfiltration to trusted cloud storage such as Amazon S3 and Dropbox. • Varonis Threat Labs phishing an AI email agent ("Pinchy") — why agents spot technical phishing better than humans yet hand over credentials to a convincing social request, and why you should treat them as privileged junior employees. Chapters: 0:00 Intro & catching up 2:25 Cisco CUCM exploited within 24h of the PoC 9:57 Ransomware Tool Matrix: The Gentlemen, DragonForce & Warlock 15:44 Gamaredon's upgraded TTPs against Ukraine 22:18 Can AI email agents be phished? 28:08 Wrap-up: Black Hat plans & the LimaCharlie suite The Cybersecurity Defenders Podcast — a podcast about cybersecurity and the people that keep the internet safe. New episodes drop weekly. Subscribe wherever you listen: • Spotify: https://open.spotify.com/show/6ep00zeY3S8ffZ4o0UeSps • Apple Podcasts: https://podcasts.apple.com/us/podcast/the-cybersecurity-defenders-podcast/id1649981740 • YouTube: https://www.youtube.com/@limacharlieio Learn more about LimaCharlie: https://limacharlie.io #cybersecurity #infosec #threatintel #ransomware #DFIR

  7. 30. Juni

    The evolving fraud landscape in the age of AI with Tamas Kadar [#334]

    Today we're speaking with Tamas Kadar, CEO / Co-Founder of SEON, about building a safer digital world for businesses. We touch on fraud, how it's evolved in the age of AI, and what we can do to protect ourselves against it. Tamas' entrepreneurial path began at Corvinus University in Budapest, where the vision for SEON first took shape. Co-founding a cryptocurrency exchange opened his eyes to the scale and complexity of online fraud, sparking the idea for something better. In 2017, that “something better” became SEON. Learn more at https://seon.io/ Support our show by sharing your favorite episodes with a friend, subscribe, give us a rating or leave a comment on your podcast platform. This podcast is brought to you by LimaCharlie, maker of the SecOps Cloud Platform, infrastructure for SecOps where everything is built API first. Scale with confidence as your business grows. Start today for free at limacharlie.io

  8. 28. Juni

    Anthropic restriction, ServiceNow incident, Fortinet credential harvesting & Ukraine accesses EU cyber reserve / Intel Chat [#333]

    In this episode of The Cybersecurity Defenders Podcast, we discuss some intel being shared in the LimaCharlie community. Reports state that the US government issued an export control order restricting access to anthropic newly released cloud mythos five and fable five models for foreign nationals.ServiceNow disclosed a security incident involving an unauthenticated access for an API endpoint that allowed users to query data from customer instances without proper authentication.A large scale credential harvesting campaign dubbed for to bleed is actively targeting Fortinet firewalls and VPN gateways, and has already compromised more than 30,000 internet facing devices across 194 countries. Ukraine has been granted access to the European Union's cyber security reserve, giving the country the ability to request assistance from EU approved cyber security experts during major cyber attacks that exceed its own response capabilities. Support our show by sharing your favorite episodes with a friend, subscribe, give us a rating or leave a comment on your podcast platform. This podcast is brought to you by LimaCharlie, maker of the SecOps Cloud Platform, infrastructure for SecOps where everything is built API first. Scale with confidence as your business grows. Start today for free at limacharlie.io.

    Anthropic restriction, ServiceNow incident, Fortinet credential harvesting & Ukraine accesses EU cyber reserve / Intel Chat [#333]
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An accessible but technical podcast about cybersecurity and the people who keep the internet safe. The podcast is built as a series of segments: we will be looking back at the last couple of weeks in cybersecurity news, talking to different people in the industry about areas of their expertise, we're going to break apart some of the TTPs being used by adversaries, and we will even cover a little bit of hacker history.

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