Don't be surprised if this question pops up as one of the top ethical hacking technical interview questions in your next interview. A data leak is any instance in which an organization's data or data knowledge is unlawfully disseminated outside of the company. Emails, printouts, lost laptops, unwanted data transfers to public portals, photos, portable drives, and other types of media are just some of how sensitive information can be compromised and made public. Data security is becoming increasingly important in today's world. As a result, there are a variety of controls that can be implemented to ensure that information does not become compromised. Some of these controls include restricting the ability to print confidential data, limiting the emails that can be sent to the internal network, following an internal encryption solution, and limiting the emails that can be sent to websites.