1-hour incident notification to MAS (the '1-hour rule')
Is this legally binding?
Binding, sectoral. Binding, but only for a defined population: one regulated sector, or the federal government and the vendors it buys from.
Binding obligation (FSM-N05 para 7 and equivalents): notify MAS as soon as possible, but not later than 1 hour, upon the discovery of a relevant incident, a system malfunction or IT security incident with severe and widespread impact on operations or material impact on customer service. Binding on FIs only.
From the source
“A Bank must notify the Authority as soon as possible, but not later than 1 hour, upon the discovery of a relevant incident.”
Notice FSM-N05, para 7
What this connects to
3 relations. Official relations are the ones the source documents state; anything marked GAGE analysis is our reading, not an agency's.
Applies to1
- ConceptFinancial services sector (Singapore)Guidance
Binding obligation on FIs
Cites2
- SectionNotice FSM-N05 Technology Risk Management (banks)Binding, sectoral
Obligation stated in Notice FSM-N05 (equivalent provisions in the other sectoral notices)
- ConceptDefinition: relevant incidentBinding, sectoral
Notification duty is triggered by discovery of a 'relevant incident' as defined
Learn this properly
This page tells you what 1-hour incident notification to MAS (the '1-hour rule') is and whether it binds you. The AI Governance program teaches the whole discipline, with dedicated coverage of the Singapore governance stack and the MAS regime, and every topic is passed by explaining it back in your own words, graded against the source.
See the AI Governance programVerified against the official source on 2026-08-17. GAGE is not affiliated with or endorsed by any agency named here, and nothing on this page is legal advice. How this is built and checked.
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