Questione giuridica chiave
Whether the fund's restitution claim was time-barred under Art. 25 para. 2 LPGA.
Decisione estratta
The one-year limitation period began when the fund learned of the SECO report, not when it first received the residence permits.
Motivazione estratta
For restitution caused by administrative fault, the period starts only when the authority should, with due attention, discover the error in a second step. The fund's earlier receipt of the permits did not trigger the period because it was merely checking continued entitlement, not reopening the initial entitlement decision.