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Singapore, Oktober 22, 2026 – Singapore’s largest telecom operator, Singtel, has been fined S$1 million by the Infocomm Media Development Authority (IMDA) after a series of mobile network disruptions in March left hundreds of thousands of customers without service.
The penalty underscores regulators’ growing insistence on reliability in critical digital infrastructure.
The outages occurred on March 16, 18, and 19, affecting roughly 720,000 subscribers.
On March 16, a chiller system failure at one of Singtel’s exchanges triggered widespread service interruptions.
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Investigators later found that a vendor had failed to reopen a manual valve after maintenance, while Singtel’s monitoring systems did not detect the issue quickly enough.
Two days later, a separate disruption struck when 5G traffic was rerouted to another exchange.
A disabled packet optimiser and a software bug combined to cause intermittent connectivity problems, disrupting essential services such as online payments, ride hailing, and food delivery.
IMDA concluded that both incidents were preventable and not the result of cyberattacks.
The regulator cited weak operational monitoring and insufficient resilience in Singtel’s systems as key factors.
In determining the fine, IMDA weighed the scale of disruption against Singtel’s cooperation, including rebates of S$5 to S$10 per subscriber, amounting to about S$8 million in compensation.
Singtel’s chief executive, Ng Tian Chong, accepted the ruling and expressed “deep regret” over the inconvenience caused.
He pledged to strengthen maintenance protocols, repair and test traffic rerouting systems, and deploy artificial intelligence tools to stress test backup networks.
The fine marks the second major penalty against Singtel in less than a year.
In December 2025, the company was fined S$1 million for a fixed voice service outage that affected half a million users.
The recurrence highlights IMDA’s tough stance on service reliability and raises questions about Singtel’s operational resilience as it serves 4.5 million mobile subscribers in Singapore.
For consumers, the enforcement reinforces expectations of accountability when essential services fail.
For Singtel, the penalty signals reputational risk and mounting regulatory scrutiny, pushing the company to invest more heavily in infrastructure resilience.
For the broader sector, the case sets a precedent for strict enforcement against lapses in essential digital services.
