This whitepaper uncovers message queues (e.g., AWS SQS) as an often-overlooked but critical data security risk in cloud environments. While queues enable scalable, decoupled architectures, they frequently store and transmit sensitive data without proper controls. Risks include unencrypted data exposure, excessive permissions, toxic data combinations, and lack of logging, making detection of breaches difficult. Attack scenarios show how attackers exploit default permissions, third-party integrations, or misconfigurations to exfiltrate or manipulate data. The paper highlights the need for strict access controls, encryption, monitoring, and policy enforcement to secure data in transit, positioning queues as a key blind spot in modern cloud security strategies.

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