Eg in the 2021 T-Mobile breach, Ting MVNO claimed their users' data was not affected: https://help.ting.com/hc/en-us/community/posts/4405384603291-T-Mobile-Hack

Eg in the 2021 T-Mobile breach, Ting MVNO claimed their users' data was not affected: https://help.ting.com/hc/en-us/community/posts/4405384603291-T-Mobile-Hacked-Data https://help.ting.com/hc/en-us/community/posts/4405384603291... Of course you'll still be affected by SIM-swapping etc that just change how your number itself is routed.