Begin with attacker payoff, not function count
Ask what an attacker gains by reverse engineering or modifying each function. Authorization logic, proprietary algorithms, protocol parsing, entitlement checks, and important local decisions often have the clearest protection value.
Interface binding, generic utilities, and frequently changing integration code may be numerous without justifying the same protection and regression cost. Scope should follow potential business loss rather than repository size.
- Can recovery bypass an important rule
- Can modification create direct loss
- Can the server own the decision
- Can the path be tested alone
Treat application launch and frequently executed paths with care
Application launch, class initialization, render loops, and high-frequency cryptographic functions are sensitive to latency and failure. Broad high-cost protection can amplify launch delay, contention, and diagnostic difficulty.
Frequently executed functions are not automatically excluded. They need an unprotected baseline and measurements for function invocation frequency, cost per function invocation, fallback behavior, and affected users before the scope expands.
Use layers to keep the failure radius small
Name obfuscation, control-flow treatment, Java-to-native conversion, and VMP address different problems at different costs. Use lower-cost controls for lower-value code and reserve VMP for a smaller set of valuable functions.
Expand one explainable function group at a time and version the configuration. When a crash or regression appears, the team can distinguish code, protection settings, and third-party dependencies.
- Tier scope by asset value
- Version every configuration
- Explain each scope change
- Keep a rollback path
Bind acceptance to the real candidate
Verify installation, application launch, critical business paths, crashes, package size, resource behavior, and target systems on one candidate identity. A successful demonstration is not a substitute for repeatable regression.
Without a current candidate, state the selection method and open checks. Do not promise performance cost, compatibility, or protection outcomes in advance.
Apply the guidance to a real application
Provide the stack, critical paths, target systems, and current candidate so Yudun can recommend a focused protection and compatibility review.