The UK has one of the world's largest and most open economies. This openness makes the UK appealing to investors and those looking to do business with UK-based entities. But this appeal also gives rise to legal and compliance vulnerabilities which are ripe for exploitation by those who are not welcomed by 'UK PLC': the bad actors who use the UK's financial infrastructure and system to perpetrate fraud and money laundering. While this is serious enough in its own right, such practices also fund organised crime in the UK and facilitate corruption overseas. This threat of illicit finance extends far beyond less reputable areas of business and finance – to the extent that it undermines legitimate business and has a significant impact on everyday society.