Wow. Back door accounts are just totally inexcusable these days - manufacturers should be held to account if their back doors end up getting exploited by threat actors. (Granted, you could argue it’s hard to distinguish between a really terrible bug and a back door, sometimes, but “intent” should cover this difference…)

Would you happen to have a write up/article about this series of events that isn’t a sanitized series of security bulletins? Sounds like it’d make for good reading.