Anne Chang Sao paulo, Brazil About Anne Anne Chang, partner at HCO Law, is a Brazilian M&A lawyer specialized in technology and investments. She co wrote the paper that was awarded in the Blockchain Challenge prompted by the Obama administration in 2016 (https://www.healthit.gov/sites/default/files/1-78-blockchainandhealthitalgorithmsprivacydata_whitepaper.pdf) Areas of Practice Blockchain Corporate M&A Privacy