earlier i spoke to marcel dicko an analyst at the institute for international security affairs here in berlin and i asked him if there was any harm there is no public evidence at least that we know so people are connecting dots here so what dots well two things basically is the first thing is that technical experts tell us it is very hard to find out if there are backdoor. and of course this technology has maintainance services entries already so there is. a possibility to already monita what's going on with the system that's after all just meaning that the company while we can access the systems from the outside yeah so there is the regular meant maintaining entry point here but there is the fear that there are other hidden back doors. that's the first thing and the second thing is that there's a strong push from the five states and from the national security community towards other states including germany to exclude wave from a technology like five g. but it's still if i mean there's no evidence and still everybody is up in arms about it some experts say that you can't build a phone