The challenges of ensuring cybersecurity in cloud computing include data breaches, inadequate access controls, and compliance with regulations. As businesses migrate to the cloud, they often face challenges related to protecting sensitive information from unauthorized access and cyber threats. Additionally, sharing resources in the cloud can complicate security measures, as different users may have varying levels of access. Compliance with regulations like GDPR adds another layer of complexity. Organizations must implement robust security protocols, conduct regular audits, and train employees in best practices to mitigate these risks effectively.