A method for securing fire-hazardous operations to be executed by a person in a fire-hazardous spatial work area, wherein a unique area identifier is associated with the work area and wherein the area identifier in the work area is electronically readable, includes receiving a unique identifier of the person, receiving an indication of the type of fire-hazardous operations to be executed, electronically reading the area identifier; sending a request to a database for master data on the work area, the request comprising the area identifier; receiving, in response to the sending of the request, the master data from the database, the master data including a unique spatial position of the work area; interrogating the safety devices of the work area to be deactivated for the duration of the time period; and sending a deactivation command to a fire alarm system.