6 posts
ASPA: making Internet routing more secure 2026-02-27 Mingwei Zhang Bryton Herdes Internet traffic relies on the Border Gateway Protocol (BGP) to find its way between networks. However, this traffic can sometimes be misdirected due to configuration errors or malicious actions. Wh…
Cloudflare outage on February 20, 2026 2026-02-21 David Tuber Dzevad Trumic On February 20, 2026, at 17:48 UTC, Cloudflare experienced a service outage when a subset of customers who use Cloudflare’s Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn vi…
Cable cuts, storms, and DNS: a look at Internet disruptions in Q4 2025 2026-01-26 David Belson In 2025, we observed over 180 Internet disruptions spurred by a variety of causes – some were brief and partial, while others were complete outages lasting for days. In the fourth quar…
Route leak incident on January 22, 2026 2026-01-23 Bryton Herdes Tom Strickx On January 22, 2026, an automated routing policy configuration error caused us to leak some Border Gateway Protocol (BGP) prefixes unintentionally from a router at our data center in Miami, Florida. Whi…
What we know about Iran’s Internet shutdown 2026-01-13 David Belson In late December 2025, wide-scale protests erupted across multiple cities in Iran. While these protests were initially fueled by frustration over inflation, food prices, and currency depreciation, they have grow…
A closer look at a BGP anomaly in Venezuela 2026-01-06 Bryton Herdes As news unfolds surrounding the U.S. capture and arrest of Venezuelan leader Nicolás Maduro, a cybersecurity newsletter examined Cloudflare Radar data and took note of a routing leak in Venezuela on January 2.…