Example implementations relate to method and controller for secure management of a rack. The method includes generating a first unique identifier corresponding to a rack profile of the rack hosting rack devices including physical devices and logical devices, in accordance with a rack topology, wherein the rack profile is based on configuration of the rack devices and the rack topology. Further, the method includes receiving information corresponding to the rack profile of the rack from peripheral devices disposed in the rack, wherein the information is based on monitored condition of the rack devices and the rack topology. The method further includes generating a second unique identifier based on the information, and determining variation in the rack profile based on comparison of the first and second unique identifiers. Further, the method includes generating an alert signal in the rack, in response to determination of the variation in the rack profile.