1. An area that has been protected or restricted, typically through physical barriers, access controls, or security measures, to prevent unauthorized entry or activity
The airport's secured zone requires all passengers to pass through security checkpoints.
A zona segura do aeroporto exige que todos os passageiros passem por postos de controle de segurança.
2. A designated area in a military, governmental, or institutional setting where only authorized personnel are permitted
The laboratory's secured zone contains sensitive research equipment and classified documents.
A zona segura do laboratório contém equipamentos de pesquisa sensíveis e documentos classificados.