Building a crypto wallet is exciting but challenging. Here’s what entrepreneurs facing, 

• Number one is security, protecting users' funds from hacks, phishing, and malware requires strong encryption, key management, and multi-factor authentication.

• Then, regulatory compliance adds complexity, with AML/KYC rules and data privacy laws varying by region.

• User experience is another hurdle, wallets must be intuitive yet secure for both beginners and experienced users.

• Technical challenges include integrating multiple blockchains, supporting diverse tokens, and ensuring fast, reliable transactions. 

Entrepreneurs also face competition, high expectations for trust, and transaction fee optimization. 

Success requires choosing a company which specializes in Crypto wallet development and balancing security, usability, compliance while building a credible, and user-friendly product in this competitive market.