Why must devices be secured before connecting to a network?

Securing devices before connecting to a network is essential primarily to prevent vulnerabilities that could be exploited. When a device connects to a network, it becomes part of a larger ecosystem that may be accessible by other devices, applications, or users on that network. If the device is not secured—through measures such as strong passwords, up-to-date software, and appropriate firewalls—it can act as an entry point for attackers who seek to gain access to sensitive data or to launch attacks on other connected devices.

Exploitable vulnerabilities on unprotected devices can lead to unauthorized access, data breaches, and various forms of cyberattacks, such as malware injections or ransomware, which can compromise not only the individual device but also the entire network it connects to. Thus, ensuring devices are secured prior to network connection is a fundamental best practice in maintaining data integrity and overall cybersecurity.