West Africa’s Submarine Cable Failure in 2024 Reveals Critical Internet Infrastructure Weaknesses, Disrupting Banks and Services

West Africa’s digital economy, now estimated at up to $150 billion, faces significant vulnerability after a series of submarine cable failures exposed deep structural weaknesses in the region’s internet infrastructure.

The warning comes from the West African Telecommunications Regulators Assembly (WATRA), which says a major outage in March 2024 revealed how fragile connectivity remains across one of the world’s fastest-growing digital markets.

Cable failures disrupt critical services

Several major cable systems, including the West Africa Cable System (WACS), Africa Coast to Europe cable, MainOne and SAT-3, were damaged almost simultaneously off the coast near Côte d’Ivoire.

The incident triggered widespread service disruptions across Nigeria, Ghana and other markets. Internet traffic in affected countries fell by more than 50% at the peak of the outage, according to WATRA, with some services taking days to fully recover.

Impact on financial and digital services

Banks struggled to process transactions, fintech platforms stalled, and cloud-based operations across industries were interrupted. The outage highlighted how deeply integrated digital infrastructure has become in everyday economic activity across the region.

Lack of redundancy worsens crisis

Regulators say weak redundancy and fragmented policies worsened the crisis. Unlike Europe or North America, where multiple redundant cable routes ensure continuity during disruptions, West Africa operates with limited backup capacity.

This means that when one or more cables fail, there are fewer alternative pathways to reroute traffic, amplifying the scale of outages.

Call for urgent infrastructure investment

Fixing the problem is now critical to attracting global tech investment. WATRA’s Executive Secretary, Aliyu Aboki, described submarine cables as “foundational to economic activity,” noting that more than 95% of global internet traffic is transmitted through these undersea systems.

Continued vulnerability despite growth

West Africa pulls in $16 billion in early 2026 as investors make fewer, bigger bets on infrastructure, according to recent market data. Yet the region’s digital economy remains exposed to similar risks unless structural weaknesses in internet infrastructure are addressed.