API security focuses on protecting application programming interfaces, which enable communication between software systems and are essential in modern architectures like microservices. Because APIs often provide access to sensitive data and core system functions, they have become a major target for cyberattacks. Common vulnerabilities include weak authentication, poor authorization controls, lack of rate limiting, and code injection risks. Businesses rely on APIs to connect services and exchange data across their operations, making their security critical. A compromised API can expose personal and organizational data, disrupt services, and lead to significant financial and reputational damage, highlighting the need for strong protection measures.

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