Navy NEC · IT & Cyber

742A Network Security Vulnerability Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

Overview

A Network Security Vulnerability Technician identifies operating system vulnerabilities, performs corrective actions, and administers installed computer network defense systems and applications. This technician manages accounts, performs virus detection, backups, recovery, and audits, assesses protocol and proxy vulnerabilities, and configures access control lists and screening routers.

Core Skills

Protocol and proxy vulnerability assessment
Router screening and access control configuration
Cross-platform user and group account administration
System backup, recovery, and security auditing

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Information Security Analysts

Operating network defense systems, correcting operating system vulnerabilities, and configuring access controls transfer directly to protecting civilian systems and assessing security measures.

How to prepare: Build an isolated lab and document a vulnerability assessment, corrective configuration changes, and a retest showing whether the changes worked.

What the civilian work involves

Monitor current reports of computer viruses to determine when to update virus protection systems.
Perform risk assessments and execute tests of data processing system to ensure functioning of data processing activities and security measures.
Modify computer security files to incorporate new software, correct errors, or change individual access status.

Civilian tools and software (examples)

Linux
Microsoft PowerShell
Python

Network and Computer Systems Administrators

Managing accounts across operating systems, maintaining virus protection, and performing backups and data recovery align with civilian systems administration.

How to prepare: Create a systems administration lab that demonstrates user and group permissions, scheduled backups, and a tested file restoration, then document the results.

What the civilian work involves

Maintain and administer computer networks and related computing environments, including computer hardware, systems software, applications software, and all configurations.
Perform data backups and disaster recovery operations.
Configure, monitor, and maintain email applications or virus protection software.

Civilian tools and software (examples)

Linux
Microsoft Active Directory
Bash

Notes & Sources

Evidence for this guidance (3 documents)

NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 742A
[1] NEC entry "742A - Network Security Vulnerability Technician"; cached text line 17646; NAVPERS 18068F Vol II, 2026-07 edition
Supports: Protocol and proxy vulnerability assessment, Router screening and access control configuration, Cross-platform user and group account administration, System backup, recovery, and security auditing, Information Security Analysts (O*NET 15-1212.00), Network and Computer Systems Administrators (O*NET 15-1244.00)
O*NET: Information Security Analysts
[2] O*NET 30.3 occupational data
Supports: Information Security Analysts (O*NET 15-1212.00)
O*NET: Network and Computer Systems Administrators
[3] O*NET 30.3 occupational data
Supports: Network and Computer Systems Administrators (O*NET 15-1244.00)

Defense contractor jobs for 742A

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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