Recently, Google released footage showing sharks attacking its undersea cables. But “Jaws” is only one of several risks network operators face. Fishing trawlers, ship anchors, earthquakes, landslides and tsunamis all threaten submarine cables, and the growing need for continuous streaming and large-scale data centre traffic adds further pressure. As bandwidth demands rise, network providers must ensure uninterrupted, reliable service around the clock.
Forces of nature
Subsea cables have always been vulnerable to natural and human activity. Fishing gear, anchors and seismic events can sever or damage systems—sometimes with widespread consequences. In 2009, Typhoon Morakot and related earthquakes and landslides in Taiwan damaged multiple submarine cables, disrupting internet access across the region. Users in Singapore, Malaysia, Hong Kong, Taiwan and mainland China experienced severe slowdowns, and some Chinese ISPs reportedly lost up to 70% of their international capacity to the United States when those links were cut.
Although physical damage is hard to prevent, advanced technologies allow networks to respond and recover more effectively.
Subsea cable risks have existed since the first undersea wires were laid more than 150 years ago, yet modern networks have developed ways to limit the impact of such incidents. Instead of a single cut bringing an entire network down, improved infrastructure design, redundancy and smarter operational tools help maintain service continuity even when parts of the system fail.
To stay resilient, networks must be agile, with software and hardware operating seamlessly together. Operators need intuitive control systems that let them respond quickly to physical disruptions using software-driven workflows. A well-designed management console serves as the central link between critical hardware, orchestration software and human operators, enabling rapid detection of fiber damage and automated rerouting of traffic to minimize service interruption.
The connected world
Natural hazards are only one piece of the puzzle. The rapid growth of video streaming, online gaming and cloud services is driving a constant surge in bandwidth demand from both consumers and enterprises. As businesses shift workloads and storage to cloud-based architectures, backbone networks feel the strain of transporting massive volumes of data.
Non-stop streaming and bandwidth-hungry data centres represent ongoing challenges that network providers must address.
Core network traffic continues to grow at high rates—often cited around 40% year-over-year in many markets—pushing operators to seek technologies that add capacity without sacrificing performance. High-capacity fiber super-channels and advanced optical transmission techniques allow providers to move large volumes of data more efficiently, helping networks keep pace with evolving usage patterns.
While preventing every physical incident is impossible, modern solutions combine resilient hardware with intelligent software to deliver scalability and flexibility. Network operators can use these tools to build self-healing architectures that detect faults, reconfigure routes, and restore service quickly. By integrating automation, analytics and programmable control, networks become more robust and future-ready.
Preparing for tomorrow
Growing bandwidth needs and the persistent risk of physical damage mean operators must prioritize both infrastructure hardening and software-driven operations. Investment in redundancy, route diversity and advanced optical systems protects against single points of failure, while management platforms and automation reduce human error and accelerate recovery. Together, these measures create a resilient ecosystem capable of supporting continuous streaming, cloud workloads and the next generation of digital services.
What do you think poses the biggest threat to operators? Let us know in the comments.