internet security expert oliver leno has been looking through the investigation. he has more on this exclusive story for us oliver. tell us more about what citizen lab has discovered here. yeah, the, the password security vulnerability in the encrypted communication. so in detail, it is about the proper verification of it says l certificates. and because of this weakness or heck hust can still more or less easily private data, for example, the passport data audio messages from the the chat function that is included in the app. and, but also the huge data such as the explanation status of a can be leaked. and i understand they're also concerns about chinese authorities having access to the information that could be hacked here. so what exactly would authorities be looking for? yeah, maybe they, they look for for private communication, for example, they interested in and, but they have also included censorship list in this app. so there's a file that is called illegal words. and this has find all the citizen lip, but there has not been able to find any evidence that