Ports serve as entry points not just for data, but also for malicious software. Malware and ransomware can be introduced to a network through unsecured ports via infected USB drives or other external devices. Once inside, these malicious programs can encrypt sensitive data, lock systems, or exfiltrate information to unauthorized parties.

The consequences of such attacks can be devastating, often resulting in operational downtime and costly recovery processes. Implementing physical port security helps in thwarting these threats by controlling what can physically connect to your devices, effectively blocking potential infection vectors.