The sibling comment is correct that e2e encrypted messages are not the default, but they likely weren't available at all in this case. They started rolling it o

The sibling comment is correct that e2e encrypted messages are not the default, but they likely weren't available at all in this case. They started rolling it out in July 2016[0], but that case started in June 2016. [0] https://newsroom.fb.com/news/2016/07/messenger-starts-testing-end-to-end-encryption-with-secret-conversations/ https://newsroom.fb.com/news/2016/07/messenger-starts-testin...