Companies risk finding that commercially sensitive information about their pricing strategies could be made public if competition authorities and other regulators believe they have unduly hiked prices to take advantage of a spike in customer demand due to a crisis.

The U.K.’s Chancellor Rachel Reeves announced the move at the end of May in response to concerns that supermarkets and petrol stations were ripping off customers by ramping up prices due to disruption to shipping and supply shortages in the Strait of Hormuz caused by the U.S. military action against Iran.

Neil Hodge is a freelance business journalist and photographer based in Nottingham, United Kingdom. He writes on insurance and risk management, corporate governance, internal audit, compliance, and legal...