Analysis of British Library cyberattack?

Hi, anyone knows of a good in-depth analysis of this incident? Attack vectors etc. Something by a real expert like Krebs or Steve Gibson or such. Obviously I’m googling but not getting any in-depth reporting. BTW, who are your go-to experts or websites for cybersecurity these days? I’ve been out of the field for almost 4 years.

analysis attack attack vectors british british library cyberattack cybersecurity etc expert experts good incident library real reporting steve steve gibson websites