Network security devices block unauthorized access to existing network infrastructure in the data center, at the workstation, in the industrial automation panel and more. These devices save time and money associated with network downtime data security breaches, infrastructure repair and hardware replacement due to theft. The innovative design of the blockout device snaps into modules and is released with the removal tool, ensuring the safety and security of the network infrastructure. The versatile design of the lock in device is compatible with most existing patch cords, face plates patch panels, IP cameras and other IP devices. It is also compatible with VoIP phones to help prevent unauthorized tampering with connectivity to ensure E911 continuity.