Earlier quoted context omitted.
Not every network hardware provider ties everything to a "Cloud" for reasons. They may have breaches but they won't be this widespread.
Wasn't really a "cloud" hack so much as a hack of a root user. How they accessed that root user's credentials is not detailed. Phishing? Hardware hack? Dumb root user and it was possible to guess his/her credentials? Could even be, that particular root user was in on it with them for all we know? In any case, this sort of a hack of any other company's root users would result in the same spectacularly catastrophic pwn…
Ubiquiti has recently been pushing there cloud set up (to the point that you can't set up a local controller with out setting up a cloud account) that's why it's so annoying.
*There is probably a way but the last time I tried I couldn't find it in setup and so installed using a previous version.