Anomaly Detection
4 Active Alerts
Anomalies detected in your decision stream. Review and acknowledge below.
Alerts (24h)
4
Unacknowledged
4
Most Common Type
Score Drift
Alert Timeline
Significant score distribution drift detected
Average risk score shifted from 0.32 to 0.58 over the last hour. This 2.8σ deviation suggests a material change in your model's scoring behavior or a shift in incoming transaction patterns.
Block rate spike: 33% vs 18% baseline
The block rate in the current window is 15 percentage points above the 24-hour baseline. This could indicate a fraud attack or an overly aggressive model update.
Ingestion velocity drop detected
Record ingestion rate dropped to 12 records/hour, well below the 24-hour baseline of 78 records/hour. This may indicate an integration issue or upstream outage.
Unusual ingestion spike between 11:00-12:00
Ingestion rate spiked to 245 records/hour, 3.1σ above baseline. This burst may represent a batch replay or unusual traffic pattern.
Reason code distribution shift
The frequency distribution of reason codes has shifted (cosine similarity 0.68). "behavioral_anomaly" now appears in 28% of decisions vs 8% baseline.
New model version detected: xgb-v2.5.0
Records are now arriving with model version xgb-v2.5.0, which was not seen in the baseline period. Monitor score distribution for the new model.
Minor velocity anomaly at 10:00
Brief ingestion rate increase to 142 records/hour, 2.1σ above normal. Likely within acceptable variance but logged for completeness.