The globalisation of the economy has led to an increase in cross-border business transactions involving on one hand countries with different laws on bribery and corruption, and on the other hand multinational companies with different ethical and business conduct standards. This creates vulnerabilities, grey areas and opportunities for corruption. This paper provides an overview of literature regarding corruption in public authorities involved in cross-border business, namely border control and customs; corruption in the supply chain; corruption risks related to cross-border financial flows and money-laundering; and companies involvement in bribery.