To help protect investors, the MNB also publishes warnings on both unlicensed resident operators (not listed in the MNB's records) and suspicious non-resident operators that have violated legislation and been disclosed by foreign supervisory authorities. The primary objective of these warnings is to provide effective and up-to-date information to Hungarian — primarily retail investors — on organisations offering investment opportunities without the mandatory central bank licences in an effort to prevent the market operations of unauthorised service providers and to channel retail investor savings into the supervised sector.

Service providers operating in Hungary without a licence, in often misleading ways and offering the sale and intermediation of investment and financial services and products significantly exceeding the population’s average risk sensitivity carry substantial risk for the safety of investments and erode small investors' trust in the Hungarian money and capital market.