Which of the following is a risk for a company using end-of-life applications on its network?

Default credentials pose a security risk when not changed by users, but they are more related to initial setup or configuration of devices rather than end-of-life applications. While default credentials can lead to unauthorized access, they are not directly tied to the risks associated with outdated software lacking security updates.

Open service ports can be potential entry points for attackers to access a network, but their presence is not inherently linked to the usage of end-of-life applications. Port security is important for network protection, but the risk posed by open ports is not specific to the utilization of outdated software.

Insecure networks can pose a risk to company data security, but this is a broader issue not exclusive to the use of end-of-life applications. Network security measures, such as encryption, access controls, and monitoring, are crucial for safeguarding data regardless of the software versions being utilized.