  Black holes in general relativity are commonly believed to evolve towards a
Schwarzschild state as they gradually lose angular momentum and electrical
charge under Hawking evaporation. However, when Kim and Wen applied quantum
information theory to Hawking evaporation and argued that Hawking particles
with maximum mutual information could dominate the emission process, they found
that charged black holes tend towards extremality. In view of some evidence
pointing towards extremal black holes being effectively singular, this would
violate the cosmic censorship conjecture. Nevertheless, since the Kim-Wen model
is too simplistic (e.g. it assumes a continuous spectrum of particles with
arbitrary charge-to-mass ratio), one might hope that a more realistic model
could avoid this problem. In this work, we show that having only a finite
species of charged particles would actually worsen the situation, with some end
states becoming a naked singularity. With this model as an example, we
emphasize the need to study whether charged black holes can violate cosmic
censorship under a given model of Hawking evaporation.
