Default Master Key

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in very old PANOS version the default Master Key = p1a2l3o4a5l6t7o8

Encryption = AES-256

This was later changed to

AES CBC mode with salt = md5(“pannetwork”) = salt=b’\x75\xb8\x49\x83\x90\xbc\x2a\x65\x9c\x56\x93\xe7\xe5\xc5\xf0\x24′

And now it has been changed to ???

Fun from Palo Alto devs: ( nop1a21l3o4a5l6t7o8 )

Reference : https://gist.github.com/rqu1/6175cb2972291fc9ac96ef18f72b792c