Booking data is information created when a person makes or manages a reservation. It may include names, contact details, dates, locations, room or service selections, payment references, and special requests. Depending on the system, it can reveal where someone plans to be and when.
In cyber security, this information is sensitive because exposure can enable stalking, targeted scams, identity misuse, or reputational harm. Attackers may seek it by compromising reservation platforms, staff accounts, or stored exports; it can also be exposed alongside chat records. Defenses include limiting access, using strong authentication, encrypting stored data, auditing access, and deleting records when they are no longer needed. Claims that booking data has been stolen should be verified before treating them as confirmed.