What question did this study set out to answer?

The primary aim is to identify security and privacy challenges in cloud-based e-health systems and evaluate protective solutions.

April 13, 2026Open Access

Cloud-Based e-Health Systems: A Comprehensive Review and Future Directions with Security and Privacy-Preserving Challenges

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This review explores security threats and privacy solutions for cloud-based e-health systems, suggesting improved strategies.

The primary aim is to identify security and privacy challenges in cloud-based e-health systems and evaluate protective solutions.
Comprehensive literature review from 2017 to 2025.
Assessment of cryptographic and non-cryptographic security solutions.
Evaluation of hybrid blockchain-integrated frameworks.”],
Identified significant threats such as data breaches and insider attacks.
Evaluated various cryptographic techniques including homomorphic encryption.
Suggested a hybrid blockchain framework to enhance data protection in cloud e-health systems.

R.Kalaichelvan et al. (2026) studied this question.

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