Kernrechtsfrage
Whether the claimants were in good faith regarding the undeclared annual pension from Versicherung Z.________
Extrahierter Entscheid
No. The pension was not expressly disclosed in the supplementary-benefit process, and the husband should have recognized and corrected the missing income entry.
Extrahierte Begründung
The omission went beyond slight negligence; a gross breach of the duty to report and provide information excluded good faith, even if the authority may also have erred.