Security is the biggest concern. A single vulnerability can lead to stolen funds and damage your reputation. Users expect strong protection, secure key management, and regular security audits.
Regulatory requirements are another challenge. Crypto laws vary by country and can change quickly, making compliance complex.
User acquisition is also difficult. The market is crowded, and convincing people to switch from established wallets requires a clear advantage.
Finally, poor user experience can hurt adoption. Even a secure wallet may struggle if it's confusing or difficult to use.
In short, the main risks are security breaches, regulatory uncertainty, strong competition, and earning user trust.