Comment by FabHK

Crypto-Gram, by nestor Bruce Schneier, on IT Security:

https://www.schneier.com/crypto-gram/

Unsupervised Learning, by Daniel Miessler, on IT Security or "intersection of security, technology, and humans", interesting links frequently:

https://danielmiessler.com/newsletter/

Money Stuff, by Matt Levine, on finance, derivatives, accounting shenanigans, VC, etc., frequently very funny and insightful:

https://www.bloomberg.com/opinion/authors/ARbTQlRLRjE/matthe...

https://www.bloomberg.com/account/newsletters