Why doesn’t YG protect BLACKPINK members?

A couple of days ago, new alleged photos of BLACKPINK members went viral online

Jisoo was spotted at Don Quijote in Roppongi during her visit to Japan wearing the same outfit as in the leaked photo

Jisoo has the same hat, outfit, hello kitty mask, and phone case in all of these photos

Whether it’s true or not, YG should protect their artists, why don’t they do anything?