Nigerian internet provider Main One Cable Co says it accidentally caused the problem that misrouted some Google traffic through China on Monday
Context & Ripple Effects
Google had told users only that the Monday outage looked external and promised an investigation; Main One Cable Co's admission answers that question within a day, naming the Nigerian operator's own network as the source of the leak.
The episode fits a pattern rather than standing alone: a year later a Swiss colocation firm was accused of a near-identical mistake that rerouted European mobile traffic through China Telecom (the 2019 BGP leak), and in 2020 Zoom apologized for letting North American calls traverse Chinese data centers under load.
First-order effects
- Google's investigation now has a named counterpart: Main One Cable Co owns the fault, shifting the outage from an unexplained mystery to a peering/routing configuration error at one operator.
- Users whose Google services were unreachable during the misroute were exposed to traffic transiting China, raising immediate questions about interception risk even though no compromise has been claimed.
Second-order effects
- Other backbone operators face pressure to tighten route filtering and validation, since two separate accidental leaks within months both landed Western traffic on Chinese paths via third-party networks.
- China Telecom's role as an unintended transit destination draws renewed scrutiny from carriers deciding whether to peer with or route through Chinese providers.
Third-order effects
- If accidental BGP leaks keep funneling sensitive traffic through China, the industry's trust-based routing model — where announcements are accepted largely on faith — becomes a geopolitical liability, pushing toward authenticated routing standards and more aggressive filtering at national borders.
- For Main One specifically, the incident foreshadows the fragility later made visible when damage to the West Africa Cable System, MainOne, and ACE cables disrupted connectivity across Africa in 2024 — West African internet resilience becoming a recurring single-point-of-failure story.
The trend: Repeated accidental BGP leaks are turning China's position on global transit paths into a systemic routing-trust problem that carriers and regulators can no longer treat as isolated operator error.