Vocus Australia–Singapore Cable Break

Vocus is managing a fault on its Australia Singapore Cable (ASC) system between Perth and Singapore, weeks after the second major cable on the route, ASC's sister system, recorded its own shunt fault. COTDR testing from the Perth cable landing station has pinpointed the break to Indonesian waters between Anyer and Singapore, and Vocus is coordinating marine repairs, spare materials and regulatory approvals.

Summary

Internet traffic has been rerouted via alternate paths, with network engineers reporting traffic shifting to Australian east-coast cables and then through Japan or the United States. The event is a resilience reminder for the eastern-Indian-Ocean region's submarine cable infrastructure, on which Australian financial, government and cloud traffic depends, and comes as regional authorities weigh redundancy against a finite set of physical routes.

Impact

• Reduced Australia–Asia connectivity while repairs are coordinated across Indonesian waters
• Traffic rerouted via east-coast cables and onward through Japan or the United States
• Highlights finite subsea cable redundancy in the region — a physical and availability risk that software-defined networking and Essential Eight posture cannot fully mitigate

Sector

Transport

Sources

• iTnews — Vocus hit by Australia Singapore Cable break
• raw/digests/Cyber-Digest-2026-09-07.md