One other thing for UK councils to note, NoName store the configs and rotate them. E.g. by tomorrow morning, around 6am UK time, they'll likely change to different councils.
But they will periodically rotate back to the same attack config whenever "Keira" (they can't spell the PMs name) does something they don't like. E.g. they've been doing the same attack at liverpool.gov.uk for over a year intermittently, despite it being mitigated nowadays. So have a process on how to deal the next time.