Cryptocurrency exchange Kraken has responded to allegations by the Securities Exchange Commission that it violated federal securities laws. In a legal filing dated September 12, the cryptocurrency exchange denied the SEC's allegations, saying the assets cited by the regulator did not meet the legal definition of a security. Kraken said in its filing that it did not violate "Sections 5, 15 (a) and 17A of the Securities Exchange Act of 1934" because the assets cited were "not securities or investment contracts".