Iliya Lingorski , a member of the Bulgarian National Bank's ( BNB ) Governing Board, highlighted the significant logistical challenges of adopting the euro in Bulgaria during a public lecture at the University of Economics in Varna. According to Lingorski , the introduction of the euro involves much more than just currency exchange; it also requires extensive adjustments across all systems, software, and infrastructure. Lingorski , who also teaches economics at Sofia University, stated that he