The biggest mistake is treating a crypto wallet like a simple app instead of a security-first financial product. Many founders focus on UI and quick launch, but overlook core fundamentals like private key management, encryption standards, and recovery mechanisms areas where even small gaps can lead to serious risks.Another common issue is ignoring user trust and real-world usability. A wallet might be technically sound, but if onboarding, transaction flow, or backup processes are confusing, users simply won’t adopt it.
