Certificate pinning means an app is configured to trust only specific server certificates or keys, instead of any certificate the device trusts. It makes traffic interception much harder, because a swapped certificate is rejected.
Pinning is a common control for apps that handle money or sensitive data. Testing confirms whether it is actually enforced at runtime, since a misconfigured pin or a debug bypass can quietly leave traffic open.
Mobexa tests the exact Android or iOS build you ship and maps every finding to the OWASP Mobile Top 10 and MASVS.
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