People’s connections in the US to Google – including its cloud, YouTube, and other websites – were suddenly rerouted through Russia and into China in a textbook Border Gateway Protocol (BGP) hijacking attack.

That means folks in Texas, California, Ohio, and so on, firing up their browsers and software and connecting to Google and its services were instead talking to systems in Russia and China, and not servers belonging to the Silicon Valley giant. Netizens outside of America may also have been affected.

The Chocolate Factory confirmed that for a period on Monday afternoon, from 1312 to 1435 Pacific Time, connections to Google Cloud, its APIs, and websites were being diverted through IP addresses belonging to overseas ISPs. Sites and apps built on Google Cloud, such as Spotify, Nest, and Snapchat, were also brought down by the interception.

Specifically, network connectivity to Google was instead routed through TransTelekom in Russia (mskn17ra-lo1.transtelecom.net), and into a China Telecom gateway (ChinaTelecom-gw.transtelecom.net) that black-holed the packets. Both nodes have since stopped resolving to IP addresses.

The black-hole effect meant Google and YouTube, and apps and sites that relied on Google Cloud, appeared to be offline to netizens. It is possible information not securely encrypted could have been intercepted by the aforementioned rogue nodes, however, our understanding is, due to the black-hole effect, it’s likely most if not all connections weren’t: TCP connections would fail to establish, and no information would be transferred. That’s the best case scenario, at least.

Source: OK Google, why was your web traffic hijacked and routed through China, Russia today? • The Register

UPDATE: Nigerian firm Main One Cable Co takes blame for routing Google traffic through China