1. A method comprising: determining a first amount of data that has changed in a first set of data since a first point in time; determining a second amount of data that has changed in a second set of data since a second point in time; comparing the first amount of data to a first predetermined amount of data; comparing the second amount of data to a second predetermined amount of data, wherein the first predetermined amount of data does not equal the second predetermined amount of data; and selecting one of a plurality of protection mechanisms for protecting the first set of data using a type of data in the first set of data and the first amount of data that has changed in the first set of data, if the comparing the first amount of data to the first predetermined amount of data indicates that the selecting should be performed.