Software Security and Testing is a Western Governors University course in the Bachelor of Science in Cybersecurity and Information Assurance, also shared with software engineering programs.
WGU says it prepares you to recognize security vulnerabilities in software, plan interventions, and develop and test those interventions. It carries 3 competency units and sits late in the Cybersecurity and Information Assurance degree plan.
The topics are broad: web security, permissions and identity security, debugging, log file analysis, API security, and encryption and cryptography concepts. Students find it demanding because the work is practical. Naming a vulnerability is not enough; you must show a mitigation and evidence that it works.
Course at a Glance
| Item | Details |
|---|---|
| University | Western Governors University (WGU) |
| Course code | D385 |
| Level | Undergraduate |
| Main program | B.S. Cybersecurity and Information Assurance (also used in software engineering degrees) |
| Credit | 3 competency units |
| Subject area | Application security, secure coding, APIs, logging, cryptography |
| Typical work | Analyzing code or an application, proposing and testing fixes, reviewing logs |
What D385 Covers
WGU's program guide lists three competencies.
| Competency (WGU wording, summarized) | What it means in practice |
|---|---|
| Configure security authentication for REST and APIs | Deciding how clients prove who they are and what they may do when calling an interface |
| Develop mitigation solutions for security vulnerabilities | Finding a weakness in code or configuration and changing it so the attack no longer works |
| Evaluate application and network logs for performance, availability and security vulnerabilities | Reading logs to spot failures, abuse or suspicious patterns and deciding what to do |
The course description also lists permissions, identity security, debugging and cryptography concepts, which support all three competencies.
Key Concepts Explained
Injection and Parameterised Queries
Injection happens when untrusted input is treated as part of a command. The standard fix for SQL injection is to keep the query structure separate from the data, using parameterised queries, and to validate input as well.
Example: A login check built by joining the user's name straight into a SQL string can be broken by input such as ' OR '1'='1. A parameterised version passes the name as a bound value, so the database never reads it as SQL. To test the fix, repeat the same malicious input and show the login now fails.
Authentication Versus Authorization in APIs
Authentication proves identity, for example with a token. Authorization decides what that identity may do. A common flaw is checking the first but not the second, so any logged-in user can read another user's records by changing an ID in a request.
Reading Logs for Security
Logs show patterns that single events hide. Many failed logins from one address followed by a success, or repeated requests to unusual paths, point to guessing or probing. Good analysis states the evidence, the likely explanation and a recommended response.
Typical Assignments and How to Approach Them
Task details vary by course version, so follow your own instructions. In general terms, work in this course tends to look like this.
| Task type | What it tests | How to approach it |
|---|---|---|
| Vulnerability analysis of given code | Recognizing the flaw and its impact | Quote the exact lines, name the weakness and explain how it could be abused |
| Mitigation and fix | Writing or specifying a correct change | Show before and after code, and say why the fix removes the root cause |
| Testing the intervention | Evidence, not assumption | Run the original attack against the fixed version and record the result |
| Log review | Interpreting data for security risk | Group entries by pattern, then state what you conclude and what to do next |
Where Students Get Stuck
- Fixing without testing. A proposed change is only a claim until you demonstrate it blocks the original problem.
- Treating symptoms. Hiding an error message does not remove an injection flaw.
- Mixing up authentication and authorization. Check both identity and permission on every request.
- Thin log analysis. Listing entries is not analysis. Explain the pattern and its meaning.
Encryption in Context
Encryption protects data in transit and at rest. Use well-established algorithms and libraries rather than inventing your own, protect keys, and never store passwords as plain text; use salted hashing instead. When a task mentions cryptography, show where it applies and what it protects against.
Study Tips for D385
- Practice the full cycle on small examples: break it, fix it, retest it.
- Keep a short checklist of common web flaws and their standard mitigations.
- Screenshot test output as you go, so evidence is ready when you write up.
- Read sample log files and write a two-sentence conclusion for each.
- Match each section of your write-up to a rubric line.
How We Help with D385
Send the scenario, the code or files provided, and the rubric. A writer with a security background can explain the vulnerability, walk through a mitigation and testing approach as a model, or review your own fix and write-up for gaps.
GradeEssays is independent and not affiliated with WGU. Our help is for study and reference: understand the method, then do and submit your own work under WGU's academic integrity policy. Orders are written from scratch, with free revisions within the scope of your original request and a full refund if late.
Make Sense of Your D385 Work
Share the scenario, your code and the evaluator feedback. We prepare a worked model showing the finding, the fix and the test evidence.
Start My D385 HelpFree revisions · Full refund if late · Written from scratch for your order
Frequently Asked Questions
WGU's Cybersecurity and Information Assurance degree plan lists Software Security and Testing at 3 competency units.
It is part of the Cybersecurity and Information Assurance degree, and WGU also uses it in software engineering programs. Check your own degree plan.
Configuring authentication for REST and APIs, developing mitigation solutions for vulnerabilities, and evaluating application and network logs.
Expect to work with code and technical configuration. Your task instructions state exactly what to produce.
Because a mitigation is only convincing if you show the original problem no longer works.
No. We provide models, explanations and feedback as study support. You complete and submit your own work.