What is the myth about the Kraken?

Excuse me, could you clarify the myth you're referring to about the Kraken? Is it the legendary sea monster from Norse mythology that's often depicted as a giant octopus or sea serpent? Or are you perhaps asking about a misconception or urban legend surrounding a particular cryptocurrency exchange named Kraken, which I believe is actually spelled Kraken? I'm curious to know the context of your question so I can provide a more accurate answer.