Final answer:
Software insecurity is common due to programmers not prioritizing or understanding how to incorporate security measures. Secure coding should be an integrated part of the development lifecycle to prevent vulnerabilities.
Step-by-step explanation:
Software insecurity is rampant with bugs and shortcomings because most programmers do not know how or do not take the time to incorporate security into their applications. When developing software, it is essential to consider security from the outset. This process, known as secure coding or security by design, involves implementing security measures at every stage of the software development lifecycle. Unfortunately, due to factors such as tight deadlines, lack of training, or simply not prioritizing security, many programs end up vulnerable to attacks.