WIBOR (Warsaw Interbank Offered Rate)
Warsaw Interbank Offered Rate — a reference rate based on data from the interbank market. For years it was the basis of most variable-rate mortgage loans in Polish zloty.
Under the benchmark reform plan, WIBOR is to be replaced by POLSTR. How the change will apply to agreements already concluded will be determined by the law and by information from your bank, which must notify you of it.