Crypto界网消息，Mysten Labs members Foteini Baldimtsi, Kostas Kryptos Chalkias, and Arnab Roy jointly released an update on a paper related to "Privacy Protection" with Yale University scholar Varun Madathil. The article provides a systematic overview of privacy protection techniques in cryptocurrencies with native privacy features, comparing privacy concepts such as confidentiality, k-anonymity, full anonymity, and unlinkability between sender and receiver, and categorizes the cryptographic technologies used to achieve these protections.