I have been reading Brian Kreb's blog for years due to the in-depth and knowledge he has on many different types of security issues. His latest post is on the Colonial Pipeline ransomware attack and is a very good (and long) read.

https://krebsonsecurity.com/2021/05/a-closer-look-at-the-darkside-ransomware-gang/#more-55529
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.

John Lubbock