[WireWrap]

> By making the discredited argument that WhatsApp's key-change behavior is a fatal flaw, you're disagreeing with... and about 50 more experts equally respected in the field if less known to the typical HN reader.

No, the vulnerability was confirmed and the argument that it represents a fatal flaw for those needing fully secure communications is sound. No one competent (and intellectually honest) has disputed this, or would even try to do so. The open letter itself acknowledges it, and I know every open letter signer I followed did so as well.

What the open letter did was take issue with the language used by The Guardian, point out the potential for such language to scare some people into less secure solutions, and argue that the vulnerability is a reasonable trade-off for convenience that can benefit some users too.