SoftBank, it seems, has and is continuing to make investments in startups with unique/proprietary data... smart team...eg recently uber, nauto, mapbox..
freezing credit profiles is a good idea but full account numbers (liability accounts only) as well as addresses and employer data were also part of this breach, its likely there will be many long-term consequences unfortunately...someone with this data can easily impersonate you and level up the level fraud
I also loved shopping there... the items seemed to be obscure, growing up I always wondered who actually shopped there for these items to justify an entire store... but the demand was there, they just didn't figure out how to take advantage of the early-mover advantage