The worst and most notable ransomware

"The ransomware gangs and their malware listed here have victimized millions of companies and caused billions of dollars in costs." https://www.csoonline.com/article/3607649/csos-guide-to-the-worst-and-most-notable-ransomware.html

https://www.csoonline.com/article/3621250/feds-seize-2-3-million-in-cryptocurrency-wallet-reportedly-used-in-colonial-pipeline-ransomware-att.html

There is so much vulnerability out there. 

https://www.jfg-nc.com/latest-cyber-security-tactics

https://www.csoonline.com/article/3620940/gao-calls-out-us-government-agencies-get-your-supply-chain-security-act-together.html

Technological civilizations really seem to be built upon a house of cards.

https://en.wikipedia.org/wiki/Surveillance_issues_in_smart_cities#Data_collection

https://www.scmagazine.com/home/security-news/ransomware