Since $\_\_\_\_\_\_\_\_\_\_\_$ and $\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ are the main means that users interact with externa, and untrusted users and environments, these are prime targets for both malicious code and social engineering.

Since $\_\_\_\_\_\_\_\_\_\_\_$ and $\_\_\_\_\_\_\_\_\_\_\_\_\_\_$ are the main means that users interact with externa, and untrusted users and environments, these are prime targets for both malicious code and social engineering.

facilities, internet

email, scripts

email, web

servers, web