It is software that many of us are perfectly content with possessing on our devices. Cellebrite may not want it on their devices, but it's not like we consent t

It is software that many of us are perfectly content with possessing on our devices. Cellebrite may not want it on their devices, but it's not like we consent to Cellebrite copying over our data. Holding us or Signal responsible for this is akin to holding a dog or its owner responsible for a burglar getting mauled - it would be one matter if the dog mauled a guest, but you can hardly blame either with unauthorised entry. In this case, exploiting this can be considered a form of digital rights management. As for tampering with evidence, your claims are certainly overbroad, otherwise one could consider Signal's vanishing messages and deliberate lack of logging to be tampering with evidence. In any case, an individual is hardly responsible for those actions; they presumably did not deliberately seek to destroy Cellebrite data since Signal may choose to do this entirely at random.