Well, I'm constantly adding to the list of things that I know ( in full or in part )
To quote Donald Rumsfeld: -
"...because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don't know we don't know…"
Source: Wikipedia
These are some of my sources: -
and these are those who I choose to follow on Twitter: -
Patrick Grayhttps://twitter.com/riskybusiness
Adam Boileauhttps://twitter.com/metlstorm?lang=en
Steve Gibsonhttps://twitter.com/sggrc?lang=en
Ivan Ristichttps://twitter.com/ivanristic
Scott Helmehttps://twitter.com/scott_helme?lang=en
Swift On Securityhttps://twitter.com/SwiftOnSecurity
Duo Securityhttps://twitter.com/duosec
etc.