1. Industrial Enterprise and IoT Security Threats: Forecast for 2018, Kaspersky Lab. https://ics-cert.kaspersky.com/reports/2017/11/30/industrial-enterprise-and-iot-security-threats-forecast-for-2018.
2. 2017 Internet Crime Report,2018
3. 2018 Data Breach Investigations Report,2018
4. Trojan horse: AIDS information introductory diskette version 2.0;Bates,1990
5. Cryptovirology: Extortion-based security threats and countermeasures;Young,1996