Help with DATA

The site is sending the email/password in some type of cryptography, how can i discover what type of cryptography this is?

{“data”:“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”}

As Ruri said before, the only way to know is to dive deep into the js files. You can usually find them in the Initiator tab in Chrome Devtools.