This Practice Note provides a high level look at how to create of security over different types of assets in Ireland, including land, shares and other securities, cash deposits in bank accounts, contractual rights, intellectual property, stock and tangible assets (such as ships, aircraft, machinery). It provides a summary of the different types of security which can be taken, the formalities required for the creation of security, registration requirements and the formalities for the release of security. It also provides key points on syndicated lending and the use of quasi-security in Ireland.