I have some mold in one of my hives. My bees are cleaning it slowly. I
had a ventilation problem this winter.
This doesn't sound like anything serious enough to destroy hive bodies.
I'd separate them and place them in the sun, when we have some, and prop
them up for good air flow. As for your honey, I'd have to see it to
come up with an opinion, but something to keep in mind, hydrogen
peroxide can be used in the place of bleach to kill mold. It decomposes
into water and oxygen fairly rapidly so there is no lasting effect.
Bleach is a bit harsher and it is made up of chloride salts, I should
know what it decomposes to, but I've forgotten. I hope this information
is helpful.