my rather ancient NAS (D-Link 320L) was recently subjected to a DDoS attack (a Marai attack I think).  I have no ports forwarded and no cloud sharing services set up on it, but I think that the attack occurred through UPnP. I have the latest firmware and app for my P9 but there are no options to disable UPnP. However reading threads on this forum I think that this is option is not available for my Deco P9? Is this option on the cards or even a beta version available please - I can see previous requests for this feature.  I'm keen to secure my system against similar attacks, and I imagine others may be too.