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Cyren Feed Outage Detection

Description

'Detects when the Cyren threat intelligence feed has not ingested any data for 6 or more hours. This may indicate a connectivity issue with the data connector, API authentication problems, or upstream service disruption.'
Rule type
Scheduled
Version
1.0.0
Declared status
Available
Query frequency
1h
Query period
1d
Trigger
gt 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

Cyren_Indicators_CL
| where TimeGenerated >= ago(24h)
| summarize 
    Total = count(), 
    Latest = max(TimeGenerated)
| extend HoursAgo = datetime_diff('hour', now(), Latest)
| where isnotempty(Latest) and HoursAgo >= 6
| project 
    LatestEventTime = Latest, 
    HoursSinceLastEvent = HoursAgo, 
    TotalEventsLast24h = Total,
    AlertMessage = strcat("Cyren feed has not received data for ", HoursAgo, " hours")

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
7f9a0d5c-3b4c-6d7e-1f2a-e3f4a5b6c7d8
Additional source files 2Solutions/CyrenThreatIntelligence/Analytic Rules/Cyren - Feed Outage Detection.yamlsource ↗Solutions/CyrenThreatIntelligence/Data/Solution_Cyren.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.