Any idea if this played a role in the most recent DDoS attack?...
"OCT 16
...The source code that powers the “Internet of Things” (IoT) botnet responsible for launching the historically large distributed denial-of-service (DDoS) attack against KrebsOnSecurity last month has been publicly released, virtually guaranteeing that the Internet will soon be flooded with attacks from many new botnets powered by insecure routers, IP cameras, digital video recorders and other easily hackable devices."
~https://krebsonsecurity.com/2016/10/source-code-for-iot-botnet-mirai-released/
Yes there is strong indications that this did play a role in the latest attack. The security flaw was known for awhile and people supposedly ignored it and left many things with default passwords. At least that is what the company that issued a recall claims.