Exposing employee and customer personal data to an untrusted environment is an example of:

(a) data spam.
(b) data phishing.
(c) data adware.
(d) data breach.

data breach

Explanation:

A data breach is a security event in which a unauthorized person steals, copy, access or transfer personal or confidential data. A data breach is the deliberate or unintentional leak of sensitive data into an distrusted environment. When a perpetrator or cyber criminal effectively invades a data source and steals confidential information, a data breach happens. This can be achieved physically by manipulating a device or network to steal or hack local data. Data breach is being used to target companies mostly by remotely bypassing network security.Data breaches include financial and personal information, trade secrets of companies or intellectual property, files, confidential documents etc.