Cloud computing presents several key security concerns:

1. **Data Breaches**: Unauthorized access to sensitive data can occur. Mitigate this risk by using strong encryption for data at rest and in transit, along with robust access controls.

2. **Data Loss**: Accidental deletion or corruption of data can happen. Regular backups and a solid disaster recovery plan are essential for data recovery.

3. **Account Hijacking**: Hackers may take over accounts via phishing or weak credentials. Implement multi-factor authentication (MFA) and enforce strong password policies to reduce this risk.

4. **Insecure Interfaces and APIs**: APIs provided by cloud services can be exploited if not secured. Follow best practices for API security and conduct regular vulnerability assessments.

5. **Insider Threats**: Employees or contractors might misuse their access. Use strict access controls and monitor user activities to detect and prevent insider threats.

6. **Compliance and Legal Issues**: Ensuring compliance with regulations like GDPR and HIPAA is crucial. Stay updated on relevant laws and work with cloud providers that offer compliance certifications.

Addressing these concerns with proactive security measures helps safeguard cloud environments effectively.