Recovery Point Objective - maximum acceptable amount of data loss measured in time. Like deciding you can afford to lose at most 1 hour of work if your computer crashes.
Financial services set RPO of 1 minute, meaning they can lose at most 1 minute of transaction data in any failure.
RPO (Recovery Point Objective) is a disaster recovery metric, not a single cloud service. All major clouds support meeting an RPO through backup, replication, and database durability features (e.g., snapshots, cross-region replication, continuous backup, and managed DR patterns).