Important facts !

Important facts ! They might also confuse you...

Crypto is a short form of Cryptography. It's not a currency. However, you can call it cryptocurrency.

Cryptanalysis is more like an analysis of algorithms. We try to find the weakness in algorithms but to make them secure. It's a bit similar when you design software and send it to the testing department to find bugs in the software.

"Miner" is the word that is mainly related to "Proof of Work" consensus. When we talk about other cryptocurrencies such as "Proof of Stake", Miner becomes "Validator". There is no miner in PoS or another consensus. If you want to google, google "Proof of Stake" original document because most of the articles or online courses use the wrong term. (https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/)