Sure, first thing’s first: treat the code like a mission plan. Scan for obvious entry points—user input, third‑party libs, external APIs. Check if those points can be manipulated to get to critical data or actions. Then, look for gaps in the flow: any place where a default or unvalidated value could slip through. Think in terms of “what if a bad actor hijacks this channel?” If the answer is “not sure,” that’s a risk you need to surface early. Always document those spots, assign someone to monitor them, and patch before the next build. It’s faster than fixing after the fact.