ReverbNation Users: Your Account May Have Been Compromised

ReverbNation has just sent the following email to their customers, informing them of a breach of data.  The incident happened in January 2014 and law enforcement has only recently informed them of the incident.  The suspect has already been charged, though some clean-up may be necessary.
Only some accounts were compromised though it makes sense to take precautions and update passwords accordingly.  ReverbNation is the largest digital distributor, so undoubtedl