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Security Now (Audio)

Security Now (Audio)

Cybersecurity guru Steve Gibson joins Leo Laporte every Tuesday. Steve and Leo break down the latest cybercrime and hacking stories, offering a deep understanding of what's happening and how to protect yourself and your business. Security Now is a must listen for security professionals every week. You can join Club TWiT for $10 per month and get ad-free audio and video feeds for all our shows plus everything else the club offers...or get just this podcast ad-free for $5 per month. New episodes every Tuesday.

All episodes(19)

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    A SOTA State-Sponsored Campaign - AI's New Superpower: Loop Engineering

    Published Jul 1, 2026

    Steve Gibson

    AI is now uncovering and fixing thousands of hidden software bugs faster than humans can keep up, but not everyone is playing by the rules. Find out how state-sponsored attackers and careless disclosures are turning the cybersecurity playbook upside down. Win10's popularity forces another year of free updates. CISA directs all federal agencies to update their UniFi OS devices. CISA gave federal agencies "the weekend" to update Cisco devices. Australia is disturbed by a deeply compromised infrast

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    The Residential Proxy Threat - Malicious Proxies in Your Living Room

    Published Jun 24, 2026

    Steve Gibson

    A flood of everyday gadgets, from cheap streaming boxes to digital photo frames, are being secretly conscripted into global proxy networks and used to mask major cyberattacks—possibly even targeting your own home network. Worries of AI-power cyberattacks are spreading. Mythos "missed some" important vulnerabilities in Firefox. Every recent patch Tuesday Nightmare Eclipse has struck. What now? Massive store of valid FortiGate VPN credentials found. F5 issues emergency updates to their NGINX-based

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    Patch Tuesday à la AI - Arch Linux Repo Under Siege

    Published Jun 17, 2026

    Steve Gibson

    This episode unpacks the jaw-dropping surge in vulnerabilities unearthed by AI, revealing how Microsoft shattered its own patch records while adversaries and defenders race to outpace each other. The conversation gets real about whether AI is fixing our broken software or just making attacks easier for everyone. Rootkits found in more than 400 ArchLinux User Repository packages. The US government requests Anthropic to remove Mythos and Fable. CISA responds to AI-driven attacks with new patching

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    The Malicious Use of AI - Anthropic's Red Team Report

    Published Jun 10, 2026

    Steve Gibson

    Discover how Anthropic's secretive red team and the MITRE ATT&CK framework are mapping the chilling rise of malicious AI use, revealing cyber threats that now move faster than defenders can respond. Was a U.S. law firm right to pay a $20 million ransom. Could Cisco have yet another SD-WAN 0-day in the wild. Why is it so difficult to author secure PHP code. Teens use "WeedHack" to spy and attack each other. Researchers create the first AI-enabled Internet worm. Google Chrome pops-up "Shop with co

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    AI Captured the Flag - Personal AI: Productivity Superpower or Privacy Threat?

    Published Jun 3, 2026

    Steve Gibson

    AI vulnerability discovery just upended the legendary Capture the Flag competitions, leaving top hackers sidelined while algorithms dominate the scoreboard. Hear why one seasoned researcher says the entire game is over for humans. As expected, UnFiOS devices are under attack. CISA commands federal agencies to update Drupal. Can the largest botnet ever, be killed. Defender endpoint can cutoff a PC from the network. Charter Communications big account leak. Chrome moves device-bound session cookies

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    Vulnerability Debt Repayment - Will Mythos Change Cybersecurity Forever?

    Published May 27, 2026

    Steve Gibson

    Mozilla found 271 unknown Firefox vulnerabilities in days using AI—bugs that millions of automated test runs had missed for years. Steve Gibson argues this isn't a crisis. It's the industry finally paying down decades of security debt, and for the first time, defenders may have the advantage. Cisco meets Mythos Can the aging CVE system survive AI Patch deployment latency in the AI age MSFT's official YellowKey BitLocker bypass mitigation Ubiquiti patches 5 serious vulnerabilities Drupal attacked

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    Daybreak and Codename MDASH - Microsoft's Edge Password Blunder

    Published May 20, 2026

    Steve Gibson

    OpenAI, Microsoft, and Google are racing to unleash next-gen AI that hunts for software vulnerabilities and hacks at scale. This episode explores how these advancements could shake up everything we thought we knew about cybersecurity. Microsoft rethinks Edge's "intended behavior" after it gets press. Chaotic Eclipse hacker strikes again with a Bitlocker bypass. Google's threat analysis group documents malicious AI use. Canada hasn't learned the lessons of the EU and the UK. AI chatbots may be fa

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    DigiCert does it right - Hugging Face Under Fire

    Published May 13, 2026

    Steve Gibson

    DigiCert's latest security mishap triggered not just a scramble behind the scenes, but a cascading crisis that briefly wiped trust from millions of Windows systems. Find out how a single support slip, followed by Microsoft's heavy-handed response, left critical infrastructures exposed. The FCC decides router firmware updates are useful. Netgear applies for and gets a full FCC pass. AI uncovers a 21-year old critical FreeBSD RCE. What was behind that Let's Encrypt outage. AI model repositories ar

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    A Browser AI API? - End of Bug Bounties?

    Published May 6, 2026

    Steve Gibson

    Google is sneaking a massive 4.7GB AI model into Chrome, and Mozilla is fighting back as the future of browsers threatens to turn into an AI arms race. Find out what's really happening behind this push and why it's setting off alarm bells across the web. Hackers AI-code a portal, forget to add authentication. The UK's NCSC issues a Mythos warning. Where's CISA? Another (of many) Linux local privilege escalations. AI may be spelling the end of bug bounties. Anthropic releases "Claude Security" mi

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    FAST16.SYS - Unmasking the NSA's Most Diabolical Digital Sabotage

    Published Apr 29, 2026

    Steve Gibson

    What if your engineering calculations secretly sabotaged your nation's best efforts? This week, we reveal how a newly uncovered 21-year-old NSA rootkit quietly corrupted scientific research in hostile states and why it changes everything you think you know about cyberwarfare. Bitwarden's CLI hit with a supply-chain attack. Commercial routers in Iran fail shortly before the war. Meta logging all employee activity to train replacement AI. GRC's DNS Benchmark Release 5. Two miscellaneous AI thought

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    Yes. Exactly. - The Zero-Day Ticking Clock

    Published Apr 22, 2026

    Steve Gibson

    Security leaders warn the era of AI-driven bug hunting has arrived, with Mythos uncovering hundreds of overlooked vulnerabilities in code bases as trusted as Firefox. Are defenders ready for the avalanche of exploits and the frantic race to patch? A disgruntled developer discloses multiple Windows 0-days. Microsoft purchases its own bugs in massive campaign. VeraCrypt & Wireshark suddenly lost their dev accounts. A serious problem with re-captured domain names. How might AI help to secure open s

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    What Mythos Means - Marketing or Mayhem

    Published Apr 15, 2026

    Steve Gibson

    We may already be living through the most consequential hundred days in cyber history, and the arrival of AI that can autonomously chain zero-day vulnerabilities into working exploits means the software industry's long-standing "ship it and patch it later" era is officially over. Show Notes - https://www.grc.com/sn/SN-1074-Notes.pdf Hosts: Steve Gibson and Leo Laporte Download or subscribe to Security Now at https://twit.tv/shows/security-now. You can submit a question to Security Now at the GRC

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    The FCC Bans New Consumer Routers - LinkedIn's JavaScript Bombshell

    Published Apr 8, 2026

    Steve Gibson

    The FCC has banned all new consumer routers made outside the US, leaving networks stuck with aging, insecure hardware while blocking innovation. Find out why this sweeping move is raising eyebrows and lawsuits—and why it makes zero sense for cybersecurity. Apple's 26.4 age queries catches many by surprise. LinkedIn's 2.7 MB of privacy-invading javascript. Microsoft starts forcing Win11 24H2 to 25H2. Cisco loses source code to the Trivy supply-chain mess. Proton introduces privacy-first voice and

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    LiteLLM - Click Fix Attacks Surge

    Published Apr 1, 2026

    Steve Gibson

    An explosive supply chain hack in Light LLM nearly unleashed catastrophic malware across millions of AI systems, and it took a coder's quick thinking to catch it before it snowballed into disaster. Will California require Linux to verify its user's age. Apple's iOS 26.4 requires UK users to prove their age. Russia chooses to use home grown 5G mobile encryption. Ukraine knew the webcam was installed by Russian spies. Google moves quantum computing "Q Day" to 2029. At RSA, UK's NCSC CEO warns of v

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    Bucketsquatting - Meta and TikTok's Tracking Pixels

    Published Mar 25, 2026

    Steve Gibson

    When convenience trumps caution, disaster waits in the wings. Join Steve Gibson and Mikah Sargent as they break down the jaw-dropping oversights lurking in mission-critical tax and cloud tools, and examine how a single unchecked decision can upend internet security for years. H&R Block's tax software does something SO WRONG. The Intoxalock breathalyzer calibration cyber attack. Firefox now offers a 100% free built-in VPN. TikTok and Meta's tracking pixels are so much more. Russians beg for the r

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    CISA's Free Internet Scanning - Malware Disguised as a VPN

    Published Mar 18, 2026

    Steve Gibson

    Meta quietly ditches encryption for Instagram chats while TikTok also backpedals on privacy, shaking up assumptions about how much big tech really values your secrets. Meanwhile, Steve Gibson reveals why CISA's free government security scans are an absolute must for businesses—plus what he learned when GRC took the plunge. The Security Now "Caption That Photo" contest. A mega social media company says "no" to strong encryption. WhatsApp to give parents more control, Consumer bandwidth proxying i

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    You can't hide from LLMs - Was Your Smart TV a Stealth Proxy?

    Published Mar 11, 2026

    Steve Gibson

    Think your online alias keeps you safe? This episode reveals how advanced language models are making it trivial to de-anonymize users at scale, challenging everything we thought we knew about internet privacy. Anthropic & Mozilla improve Firefox's security. Apple & Google begin testing cross-platform RCS encryption. Ubuntu's SUDO starts echoing asterisks. Inviting a web proxy into your home. Apple devices cleared by Germany for NATO's use. A serious remote takeover of OpenClaw. TokTok won't encr

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    The Call Is Coming From Inside the House - Live From Zero Trust World 2026

    Published Mar 5, 2026

    Steve Gibson

    Steve Gibson and Leo Laporte host a special episode of Security Now live from ThreatLocker's Zero Trust World 2026 in Orlando, Florida. The final frontier of security is internal. Today, we have the tools, techniques and technologies to thwart attacks originating from outside our perimeter. We're now good at protecting our borders. But major high profile breaches occurring over the past several years have revealed that insufficient attention has been given to the security of our internal systems

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    KongTuke's CrashFix - Click, Paste, Pwned

    Published Mar 3, 2026

    Steve Gibson

    A crafty new breed of social engineering attack is tricking users into launching malware straight from their clipboard, exposing a fresh vulnerability in Windows that even tech pros could fall for. Leo Laporte and Steve Gibson break down how the latest ClickFix and CrashFix exploits are outsmarting traditional defenses. The lowdown on last week's "no turn" picture of the week. Is an AI-driven hacking campaign a big deal now. Clause used in multiple Mexican government attacks. Apple continues to