Lots of HN users in Spain have transversal knowledge of tons of terms. Bear mind Spain it's highly social and engineers (proper ones, with a Bachelor's at least) often share trivia back and forth from their respective areas. Is was not weird seeing for people ask Biologysts when the pandemics and viceversa on cyberattacks.

By just politely asking you can hit tons of different terms in a day.

I’m Portuguese. The REN engineers were on national radio during the afternoon and evening.

note the keywords: "appears" and "not sure"

Note the very first expression employed to answer the question in the title: "No.". If that ain't an exceedingly confident and ignorant stance on a subject we lack a huge amount of context on for us to give such a direct answer, I don't know what is.

No, it wasn’t a cyberattack.

No, you can't know if it was.

missed that, a valid point, thank you