DBS customers on Friday (Dec 1) faced delays in logging in to the bank's mobile app due to high traffic.
In a notice within the bank's digibank app, it said the app was experiencing high traffic from customers checking their balances at the start of the month.
It added that customers could use the bank's website to access their accounts.
On Friday, checks by The Business Times found that some Singaporeans had begun receiving the government's Assurance Package payouts, although the Ministry of Finance had announced that these would go out only from Dec 5 to PayNow-NRIC-linked bank accounts.
All Singaporeans aged 21 and above in 2024 will receive between S$200 and S$800 in December to help with the rising cost of living.
Friday's lag in mobile-banking services follows a series of digital disruptions for DBS customers this year.
On Nov 1, the Monetary Authority of Singapore (MAS) imposed a six-month pause on the bank's non-essential IT changes to ensure that it dedicates resources and attention to strengthening its technology risk-management systems and controls.
The central bank said then that it would take about 24 months for the bank to put in place structural changes to improve its resilience.
"In the meantime, it is possible that disruptions may still occur.
"In such situations, MAS expects DBS Bank to promptly recover its services and communicate to its customers in a clear and timely manner," it said.
DBS shares closed at S$31.90, up 0.5 per cent or S$0.16, on Friday.
This article was first published in The Business Times. Permission required for reproduction.
