Mobile · Ethical Hacking

Walk me through pen-testing an Android banking app.

(1) Static analysis — APKTool to decompile, jadx-gui to read decompiled Java/Kotlin. Search for hardcoded secrets, API endpoints, weak crypto. (2) Dynamic analysis with Frida — hook root detection, certificate pinning, encryption functions to bypass and observe. (3) MITM proxy — Burp Suite + bypass cert pinning (Frida hooks for SSLPinningChecker). (4) API security testing — once MITM established, fuzz APIs for OWASP API Top 10 (broken auth, BOLA/IDOR, mass assignment). (5) Local data — extract /data/data/com.bank.app/, look for unencrypted SharedPreferences, SQLite databases, cached files. (6) Insecure IPC — exposed Activities, Services, Content Providers. Banking apps have high bounty payouts ($10K-25K) — invest in mastering this niche.

Want the full explanation? This is the atomic answer suitable for quick interview prep. For the structured deep-dive — including code samples, strong-answer vs weak-answer notes, common follow-up questions, and how this fits the larger ethical hacking topic — see the full Q&A on Networkers Home:

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