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BGP Vortex: Internet Kill Switch?
Could a single BGP trick really break the internet?
A new “BGP Vortex” claim says yes - by abusing route oscillation and BGP communities to trigger endless update loops and exhaust router CPU. So we check what actually holds up in the real world.
In this Threat Talks Deep Dive, Rob Maas, Field CTO at ON2IT, sits down with Eric Nghia Nguyen Duy, Network Engineer at AMS-IX, to understand what BGP (short for Border Gateway Protocol) actually does, how the proposed Vortex mechanism works (route oscillation + community behavior), and why real-world internet operators are far more resilient than the headline suggests.
Yes, it’s an attention-grabbing claim.
No, it’s not a “break the whole internet tomorrow” button.
- (00:00) - – 02:29 Introduction: The BGP Vortex Claim
Key topics covered
• What BGP is and why the internet depends on it
• How route oscillation and update amplification can overload routers
• Why the attack relies on upstream policy choices (communities aren’t “magic”)
• Why the “break the internet” claim is mostly theoretical
• Practical mitigations: filtering/inspecting communities, monitoring, session shutdown
Resources
• BGP Vortex research paper: https://www.usenix.org/system/files/usenixsecurity25-stoeger.pdf
• BGP Vortex presentation video: https://www.youtube.com/watch?v=dd6L1mdQLmk
• Threat Talks: https://threat-talks.com/
• ON2IT (Zero Trust as a Service): https://on2it.net/
• AMS-IX: https://www.ams-ix.net/ams
Subscribe to Threat Talks and turn on notifications for deep dives into the world’s most active cyber threats and hands-on exploitation techniques.
Click here to view the episode transcript.
🔔 Follow and Support our channel! 🔔
===
► YOUTUBE: https://youtube.com/@ThreatTalks
► SPOTIFY: https://open.spotify.com/show/1SXUyUEndOeKYREvlAeD7E
► APPLE: https://podcasts.apple.com/us/podcast/threat-talks-your-gateway-to-cybersecurity-insights/id1725776520
👕 Receive your Threat Talks T-shirt
https://threat-talks.com/
🗺️ Explore the Hack's Route in Detail 🗺️
https://threat-talks.com
🕵️ Threat Talks is a collaboration between @ON2IT and @AMS-IX
View all episodes
By Threat TalksCould a single BGP trick really break the internet?
A new “BGP Vortex” claim says yes - by abusing route oscillation and BGP communities to trigger endless update loops and exhaust router CPU. So we check what actually holds up in the real world.
In this Threat Talks Deep Dive, Rob Maas, Field CTO at ON2IT, sits down with Eric Nghia Nguyen Duy, Network Engineer at AMS-IX, to understand what BGP (short for Border Gateway Protocol) actually does, how the proposed Vortex mechanism works (route oscillation + community behavior), and why real-world internet operators are far more resilient than the headline suggests.
Yes, it’s an attention-grabbing claim.
No, it’s not a “break the whole internet tomorrow” button.
- (00:00) - – 02:29 Introduction: The BGP Vortex Claim
Key topics covered
• What BGP is and why the internet depends on it
• How route oscillation and update amplification can overload routers
• Why the attack relies on upstream policy choices (communities aren’t “magic”)
• Why the “break the internet” claim is mostly theoretical
• Practical mitigations: filtering/inspecting communities, monitoring, session shutdown
Resources
• BGP Vortex research paper: https://www.usenix.org/system/files/usenixsecurity25-stoeger.pdf
• BGP Vortex presentation video: https://www.youtube.com/watch?v=dd6L1mdQLmk
• Threat Talks: https://threat-talks.com/
• ON2IT (Zero Trust as a Service): https://on2it.net/
• AMS-IX: https://www.ams-ix.net/ams
Subscribe to Threat Talks and turn on notifications for deep dives into the world’s most active cyber threats and hands-on exploitation techniques.
Click here to view the episode transcript.
🔔 Follow and Support our channel! 🔔
===
► YOUTUBE: https://youtube.com/@ThreatTalks
► SPOTIFY: https://open.spotify.com/show/1SXUyUEndOeKYREvlAeD7E
► APPLE: https://podcasts.apple.com/us/podcast/threat-talks-your-gateway-to-cybersecurity-insights/id1725776520
👕 Receive your Threat Talks T-shirt
https://threat-talks.com/
🗺️ Explore the Hack's Route in Detail 🗺️
https://threat-talks.com
🕵️ Threat Talks is a collaboration between @ON2IT and @AMS-IX