The wiretapping scandal you are referring to is known as "The Athens Affair" and has to do with infiltration of Ericsson software exchanges by experts on how th

The wiretapping scandal you are referring to is known as "The Athens Affair" and has to do with infiltration of Ericsson software exchanges by experts on how the software is working. Vodafone is/was the one to blame here and it wasn't a fault of the software provided by Ericsson. More info here: https://spectrum.ieee.org/telecom/security/the-athens-affair https://spectrum.ieee.org/telecom/security/the-athens-affair