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What is the most likely cause of a security error in a browser after a new version has been deployed?

  1. SSL certificate expiration on the SaaS load balancers.

  2. Federation issues between the SaaS provider and the company.

  3. Obsolete security technologies implemented on the SaaS servers.

  4. Unencrypted communications between the users and the application.

The correct answer is: Obsolete security technologies implemented on the SaaS servers.

The most likely cause of a security error in a browser after deploying a new version of an application is related to obsolete security technologies implemented on the SaaS servers. When a new version of a web application is deployed, it may rely on modern security standards and protocols that could potentially be at odds with outdated technologies that the SaaS servers use. For instance, if the new version adopts stronger encryption methods or updated authentication protocols that are not supported by the older technology on the servers, this can lead to security errors when the users try to access the application. Modern browsers are increasingly stringent about security measures and may block connections that do not meet the latest security requirements, thus resulting in browser errors regarding security. This scenario underscores the importance of ensuring that all components of the cloud infrastructure, including the SaaS servers, are updated and compliant with current security practices to avoid compatibility issues and potential vulnerabilities.