Security Now

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 by a PostgreSQL injection Microsoft terminates SMS as a second factor GitHub hacked – all of its source code exfiltrated Russia is using very old Western software Why to get a no-charge AI chatbot account New Sci-Fi on Netflix What we learn from Mozilla’s use of Mythos Show Notes – https://www.grc.com/sn/SN-1080-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: guardsquare.com doppel.com cyberhoot.com/securitynow trustedtech.team/securitynow365 XBOW.com

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 far more addictive than social media. Project: Hail Mary now available to stream. An apparently-serious zero-point quantum vacuum energy source. A bit of listener feedback. OpenAI’s & Microsoft’s vulnerability discovery systems Show Notes – https://www.grc.com/sn/SN-1079-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: outsystems.com/twit hoxhunt.com/securitynow zscaler.com/security meter.com/securitynow canary.tools/twit – use code: TWIT joindeleteme.com/twit promo code TWIT

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 are overflowing with malware. The CISA 2015 info-sharing act is being renewed. Edge leaves ALL usernames and passwords in the clear. An examination of DigiCert’s breach and their response Show Notes – https://www.grc.com/sn/SN-1078-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: cyberhoot.com/securitynow guardsquare.com doppel.com outsystems.com/twit threatlocker.com/twit

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” mini-Mythos. ChatGPT gets very serious about login security. Syncthing’s SyncTrayzor v1 abandoned; v2 created. Google drops an AI API into Chrome; Mozilla objects Show Notes – https://www.grc.com/sn/SN-1077-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: outsystems.com/twit zscaler.com/security meter.com/securitynow bitwarden.com/twit hoxhunt.com/securitynow trustedtech.team/securitynow365

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 thoughts. A bunch of terrific listener feedback. Unraveling the diabolical history of “fast16.sys” Show Notes – https://www.grc.com/sn/SN-1076-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: doppel.com threatlocker.com/twit material.security cyberhoot.com/securitynow guardsquare.com

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 source repositories. A listener wonders what we thought of Project Hail Mary. Cyber security professionals tell us What Mythos Means Show Notes – https://www.grc.com/sn/SN-1075-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: canary.tools/twit – use code: TWIT joindeleteme.com/twit promo code TWIT hoxhunt.com/securitynow meter.com/securitynow zscaler.com/security

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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: guardsquare.com hoxhunt.com/securitynow zscaler.com/security

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 video “Meet.” GitHub to fix lagging security of its Actions feature. Cloudflare reaffirms the privacy of its 1.1.1.1 DNS. Cloudflare uses AI to re-code better secure WordPress. The FCC drops a ban on all new consumer-grade routers. Show Notes – https://www.grc.com/sn/SN-1073-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: meter.com/securitynow zscaler.com/security material.security bitwarden.com/twit hoxhunt.com/securitynow

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 vibe-coded SaaS replacements. More information about nasty ClickFix campaigns. More than one in seven Reddit postings are an AI-bot. The story behind the LiteLLM disaster that was averted. Show Notes – https://www.grc.com/sn/SN-1072-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 Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: threatlocker.com/twit adaptivesecurity.com guardsquare.com meter.com/securitynow

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 return of Telegram, WhatsApps and others. Never connect your crypto-wallet to an unknown service. What would a week be without a Cisco CVSS of 10.0. Ubiquiti patches a 10.0 critical flaw. Listener feedback and… What’s “Bucketsquatting” and what can be done to prevent it Show Notes – https://www.grc.com/sn/SN-1071-Notes.pdf Hosts: Steve Gibson and Mikah Sargent Download or subscribe to Security Now at https://twit.tv/shows/security-now. You can submit a question to Security Now at the GRC Feedback Page. For 16kbps versions, transcripts, and notes (including fixes), visit Steve’s site: grc.com, also the home of the best disk maintenance and recovery utility ever written Spinrite 6. Join Club TWiT for Ad-Free Podcasts! Support what you love and get ad-free audio and video feeds, a members-only Discord, and exclusive content. Join today: https://twit.tv/clubtwit Sponsors: hoxhunt.com/securitynow guardsquare.com outsystems.com/twit zscaler.com/security