English to Russian Tech/Engineering IT (Information Technology)

Перевожу стандарт безопасноти данных индустриии платежных карт.

This requirement is intended to prevent malicious individuals from accessing the organization's network via unauthorized IP addresses or from using services, protocols, or ports in an unauthorized manner (for example, to send data they've obtained from within your network out to an untrusted server.
All firewalls should include a rule that denies all inbound and outbound traffic not specifically needed. This will prevent inadvertent holes that would allow other, unintended and potentially harmful traffic in or out.

Интересует, как лучше перевести "inadvertent holes"