A. 1. Supplement with external resources: Look for additional online courses or resources that focus on security topics. Websites like Coursera, Udemy, or even YouTube can provide more in-depth content. 2. Join forums or communities: Engage with online forums or communities focused on security topics. This can provide insights and deeper understanding from professionals in the field.

B. 3. Use textbooks or eBooks: Consider purchasing or borrowing textbooks that cover security topics in detail. This can provide a more comprehensive understanding.