  We investigate the evaporation of an uncharged and non-rotating black hole
(BH) in vacuum, by taking into account the effects given by the shrinking of
the horizon area. These include the back-reaction on the metric and other
smaller contributions arising from quantum fields in curved spacetime. Our
approach is facilitated by the use of an analog accelerating moving mirror. We
study the consequences of this modified evaporation on the BH entropy. Insights
are provided on the amount of information obtained from a BH by considering
non-equilibrium thermodynamics and the non-thermal part of Hawking radiation.
