1. Facebook and google were conned out of $100m in phishing scheme;Gibbs,2017
2. Inside the russian hack of yahoo: How they did it;Williams,2017
3. ’ceo spoofing’ costs drug company $50 million;Paul,2016
4. Composition kills: A case study of email sender authentication;Chen
5. Advanced persistent threat and spear phishing emails;Ghafir