What is military iaso?

A military IASO is an "Information Assurance Security Officer". It is an Army term equivalent to "IAO" used elsewhere in DOD. According to Ar 25-2, paragraph 3-2f:

DOD uses the term IAO for IASO responsibilities. All IASOs will-

(1) Enforce IA policy, guidance, and training requirements per this regulation and identified BBPs.

(2) Ensure implementation of IAVM dissemination, reporting, and compliance procedures.

(3) Ensure all users meet the requisite favorable security investigations, clearances, authorization, need-to-know, and security responsibilities before granting access to the IS.

(4) Ensure users receive initial and annual IA awareness training.

(5) Ensure log files and audits are maintained and reviewed for all systems and that authentication (for example, passWord) policies are audited for compliance.

(6) Prepare, distribute, and maintain plans, instructions, and SOPs concerning system security.

(7) Review and evaluate the effects on security of system changes, including interfaces with other ISs and document all changes.

(8) Ensure that all ISs within their area of responsibility are certified, accredited and reaccredited.

(9) Maintain and document CM for IS software (including IS warning banners) and hardware.

(10) Pre-deployment or operational IASOs will ensure system recovery processes are monitored and that security features and procedures are properly restored.

(11) Pre-deployment or operational IASOs will maintain current software licenses and ensure security related documentation is current and accessible to properly authorized individuals.

(12) Tenant IASOs will support and assist tenant IAMs (or the installation IAM if no tenant IAM exists).

(13) Report security violations and incidents to the servicing RCERT in accordance with Section VIII, Incident and Intrusion Reporting.