1. Americans and cybersecurity;Olmstead;Pew Res. Center,2017
2. @spam: the underground on 140 characters or less;Grier,2010
3. Detecting and characterizing social spam campaigns;Gao,2010
4. Sorry, I was hacked: A classification of compromised twitter accounts;Zangerle,2014
5. Understanding compromised accounts on twitter;VanDam,2017