One potential risk I've seen with the rapid growth of fintech is the challenge of maintaining robust cybersecurity while scaling quickly. In one project I managed, the company expanded its user base rapidly but hadn't fully updated its security protocols to match the growth. This left vulnerabilities that could be exploited by hackers. To mitigate this, I emphasized implementing continuous security audits and investing in adaptive threat detection systems that evolve alongside the platform. It's also crucial to build a culture of security awareness across the organization, so everyone understands their role in protecting sensitive data. Rapid growth is exciting, but without strong, proactive security measures, fintech companies risk losing user trust and facing costly breaches. Balancing innovation with rigorous security practices is the key to sustainable success.