Hacking eh? I agree with Barnstormer... And so do the US Government..
BBC News - Huawei and ZTE pose security threat, warns US panel
They've vetoed Huawei takover of an number of us infrastructure/technology providers.
Closer to home a number of the UK operators have a vendor split whereby they use Huawei plus an-other depending where you are making your voice or data connection, you may well be on infrastructure that has concerns.