Complex sentence: In April 2016, Elbakyan told "Science" that many anonymous academics from around the world donate their credentials voluntarily, while publishers have claimed that Sci-Hub relies on credentials obtained by phishing.
Split into simpler sentences: In April 2016, Elbakyan told "Science" that many anonymous academics from around the world have donated their credentials voluntarily. Publishers have claimed that Sci-hub relies on credentials obtained by phishing.