07-case-studies.md

07 – Case Studies in Mobile & Network Security

Case 1: SS7 Exploitation

• Attackers rerouted SMS for banking OTPs.
• Result: Large-scale financial fraud.

Case 2: Pegasus Spyware

• Exploited mobile OS vulnerabilities.
• Allowed complete surveillance of smartphones.

Case 3: SIM Swapping Attacks

• Social engineering telecom providers.
• Hijacked phone numbers to steal cryptocurrency.

Lessons Learned

• Mobile security requires cooperation between users, developers, and telecom providers.