Biosecurity is a term with multiple meanings depending on the discipline, but generally refers to the securing of human life, agriculture and the environment from biological threats.

The origin of the threat can be intentional, e.g. terrorists releasing a disease agent, or unintentional, e.g. an agricultural pest transported via international trade, or a pandemic virus such as influenza.

Researchers at Imperial College have focused on several aspects, including the potential dual-use of synthetic biology, detecting and responding to disease outbreaks, and securing the food supply chain from threats.