# Data retention
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The following table shows retention periods for data stored by Next generation Resilience Hub.


| Data type | Retention | 
| --- | --- | 
| Assessment results and failure mode findings | 2 years | 
| System and service event logs | 2 years | 
| Discovered resources | 1 year TTL | 
| Topology snapshots | 2 years | 
| Dependency data | Duration of enablement \+ 30-day lookback |