The 21st century has witnessed an unprecedented transformation in risk quantification, driven by rapid advancements in technology. Big data and artificial intelligence (AI) have revolutionized the field, enabling real-time analysis, predictive modelling, and enhanced decision-making. These technologies have expanded the scope of risk assessment to address emerging challenges such as climate change, cyber threats, and global pandemics. This essay explores the pivotal role of big data and AI in risk quantification, highlighting key developments, applications, and implications for the future.