COMPUTER FUNDAMENTALS

Detailed explanation-1: -Security by design is an approach to software and hardware development that seeks to make systems as free of vulnerabilities and impervious to attack as possible through such measures as continuous testing, authentication safeguards and adherence to best programming practices.

Detailed explanation-2: -The ability of a system or component to function under stated conditions for a specified period of time.

Detailed explanation-3: -Both security and reliability are concerned with the confidentiality, integrity, and availability of systems, but they view these properties through different lenses. The key difference between the two viewpoints is the presence or lack of a malicious adversary.

Detailed explanation-4: -Reliability analysis is predictive and can be used to monitor the development process. But in security we rely on simple counting of vulnerabilities and metrics such as ‘days of risk. ‘ Security measures are more often used to place blame and point fingers than to estimate or predict anything.