Confined explosions in enclosed buildings have caused at least 20 fatalities and 123 injuries since 1998, yet PHAs and QRAs routinely fail to account for them adequately. These webinar slides present a systematic review of CSB incidents and introduces quantitative methods to better assess and integrate these critical hazards into standard risk analysis. This webinar was based on a presentation from the 2026 AIChE Spring Meeting & 22nd Global Congress on Process Safety.