A Google Cloud outage disrupted banking apps, public services and several online platforms across the United Kingdom on October 20, highlighting the risks associated with the growing reliance on cloud infrastructure. Google attributed the incident to a power-related event in its London-based cloud region and later confirmed that service availability had been restored.
What caused the Google Cloud outage?
Google said a “power event” affected its europe-west2-b zone in London, triggering errors and intermittent network failures across multiple cloud services. The incident began on October 20 and affected services that depend on Google’s cloud infrastructure.
According to Google’s official Cloud Service Health dashboard, multiple services experienced disruption in the London region. Google’s engineering teams worked to mitigate the problem and restore normal operations.
Which services were affected?
The outage caused disruption across several UK businesses and public services, including digital banking, delivery platforms and government-related services.
Affected organisations included Revolut, Lloyds Bank, HSBC, Royal Mail and property platform Rightmove. Some customers experienced problems accessing banking services, while other platforms reported interruptions to their normal operations.
Revolut said that although multiple services were disrupted, customers’ money and data remained safe. The incident demonstrated how a technical failure at a major cloud provider can affect businesses operating across different sectors.
Google restores cloud services
Google subsequently reported that full service availability had been restored in the affected London-based cloud region. However, individual companies could still require time to confirm that their own services were operating normally.
The company said it would investigate the incident and provide further details about what went wrong. Its findings could help clarify the precise technical sequence that led to the disruption.
Cloud dependence raises reliability concerns
The incident has renewed questions about the concentration of critical digital services among a small number of cloud providers.
Banks, public institutions and online businesses increasingly depend on external infrastructure to operate applications, store data and deliver services. While cloud platforms offer scalability and flexibility, regional disruptions can create widespread problems when dependent systems lack sufficient redundancy.
Businesses can reduce their exposure by designing systems to tolerate regional failures, maintaining recovery procedures and testing contingency plans. However, resilience measures can add cost and technical complexity.
The Google Cloud outage illustrates why cloud reliability is becoming an increasingly important issue for businesses and regulators as more essential services move online.
