See my comment at https://news.ycombinator.com/item?id=5897497 https://news.ycombinator.com/item?id=5897497 for some concerns I have that seem to cast doubt on

See my comment at https://news.ycombinator.com/item?id=5897497 https://news.ycombinator.com/item?id=5897497 for some concerns I have that seem to cast doubt on the claim, along with a link to discussion of reverse engineering efforts that suggest no end to end encryption.