Singapore's largest bank DBS suffered five major digital disruptions in 2023, prompting the Monetary Authority of Singapore to bar it from new acquisitions and non-essential IT changes for six months and impose hundreds of millions in additional capital requirements. CEO Piyush Gupta took a S$4.14 million pay cut to take accountability.

The bank suffered five major disruptions during the year. The first major outage struck in March, knocking online services offline for hours. A May incident was traced to human error during maintenance. The worst came on October 14, when a technical issue at an Equinix data centre left DBS and Citibank customers unable to access banking services for more than 12 hours, also disabling DBS automated teller machines and forcing the bank to reopen branches on a Saturday afternoon. Further disruptions followed on September 26 and October 20.

The Monetary Authority of Singapore deemed the repeated failures unacceptable. In May 2023 it applied a 1.8-times multiplier to DBS's operational risk-weighted assets, translating to roughly S$979 million in additional regulatory capital. Then, on November 1, 2023, MAS ordered a six-month pause on non-essential IT changes and barred the bank from acquiring new business ventures or shrinking its branch and ATM network in Singapore, to ensure it dedicated resources to fixing its technology risk management.

DBS apologised publicly and committed S$80 million to a technology uplift and resilience roadmap. Chairman Peter Seah had promised that senior management would be held accountable through compensation, and in February 2024 the bank announced that CEO Piyush Gupta would take a 30 per cent cut to his variable pay, amounting to S$4.14 million, while the group management committee's variable compensation was reduced by 21 per cent. Gupta had earlier described the March outage as sobering and embarrassing.

The sanctions were lifted in stages: MAS ended the six-month pause in April 2024 after observing improvements, though additional capital requirements remained in place for a time. The episode was a humbling moment for a bank that had won global accolades as the world's best digital bank, and it underscored how heavily Singapore's economy depends on the resilience of its banking infrastructure. DBS has since invested heavily in system redundancy and incident recovery, but the 2023 outages remain the benchmark against which the bank's operational reliability is judged.

The March 29 outage lasted about 10 hours and affected digital banking, ATMs and payment services; Gupta publicly called it sobering and embarrassing, noting it was the second major disruption in 16 months after a 2021 incident. The October 14 failure stemmed from a cooling issue at an Equinix data centre and also hit Citibank customers.

MAS's response escalated through the year: the May capital multiplier was followed by the November six-month freeze on new ventures and non-essential IT changes. The regulator lifted the pause in April 2024 after observing remediation progress, but the additional capital requirements stayed in place longer, a reminder of how seriously Singapore treats banking resilience.