Examples of techniques for sequential object set passwords are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method may include receiving, at a user device, a first object set; transmitting, to a processing device, a first rearranged object set that represents the first object set rearranged into a first sequential order by the user; and responsive to the first rearranged object set matching a first known sequential object set, receiving, at the user device, a second object set.