Using qualitative network and document analysis of corruption cases in Italy at two different points in time, the research shows that changes in the effectiveness of the criminal-justice system, governance reforms and the roles of key actors can alter how corruption schemes are organised and sustained. The authors propose a conceptual framework viewing corruption as a dynamic network phenomenon, where relationships between public officials, intermediaries and private actors adapt to institutional pressures, meaning anti-corruption policies can unintentionally transform—rather than eliminate—the ways corrupt networks operate.