Category Overview

Operational Security — Election Security Glossary

53 election security terms in the Operational Security category, with definitions sourced from NIST, CISA, EAC, and 30+ authoritative documents.

Browse all 53 terms in Operational Security

Resilience

The ability to prepare for and adapt to changing conditions and withstand and recover rapidly from disruptions.

Medium consensus5 sources

Continuity Of Government (cog)

A coordinated effort within the Federal Government's executive branch to ensure that national essential functions continue to be performed during a catastrophic emergency.

Medium consensus3 sources

Disruption

An unplanned event that causes the general system or major application to be inoperable for an unacceptable length of time (e.g., minor or extended power outage, extended…

Medium consensus3 sources

Fail Safe

A mode of termination of system functions that prevents damage to specified system resources and system entities (i.e., specified data, property, and life) when a failure occurs…

Low consensus3 sources

Failover

The capability to switch over automatically (typically without human intervention or warning) to a redundant or standby information system upon the failure or abnormal termination…

Medium consensus3 sources

Fault Tolerant

A system that continues to operate after the failure of a computer or network component.

High consensus3 sources

Information System Resilience

The ability of an information system to continue to: (i) operate under adverse conditions or stress, even if in a degraded or debilitated state, while maintaining essential…

Medium consensus3 sources

Operations Security (opsec)

1. A process of identifying critical information and analyzing friendly actions attendant to military operations and other activities to: identify those actions that can be…

Medium consensus3 sources

Accounting Number

A number assigned to an individual item of COMSEC material to facilitate its handling and accounting.

Medium consensus2 sources

Backup

A copy of files and programs made to facilitate recovery, if necessary.

Medium consensus2 sources

Business Continuity Plan (bcp)

The documentation of a predetermined set of instructions or procedures that describe how an organization's mission/business processes will be sustained during and after a…

Medium consensus2 sources

Business Impact Analysis (bia)

An analysis of an information system's requirements, functions, and interdependencies used to characterize system contingency requirements and priorities in the event of a…

Medium consensus2 sources

By ESG Editorial Team · Drawing on CISA operational guidance, EAC checklists, and 25+ sources on election-day procedures

Operational security is the set of day-to-day practices, procedures, and habits that keep election operations running safely. Unlike a firewall or an encrypted protocol, operational security is not a single product. It is a culture: the way a county office handles a phone call, how a vendor ships a laptop, the procedure a poll worker follows when opening a polling place at 6 a.m.

Why this category matters for election security is that most failures are not the result of sophisticated attacks. They are the result of someone being tired, being misled, or being in a hurry. A strong operational security program builds in double-checks, time for verification, and procedures that work even when the people executing them are new, stressed, or unsure.

The federal government, through the Cybersecurity and Infrastructure Security Agency and the Election Assistance Commission, publishes operational guidance for election offices. That guidance typically covers physical security, cyber hygiene, phishing awareness, and incident planning. State election directors and professional associations add their own layers, often focused on poll worker training and chain of custody procedures.

The terminology in this category reflects the everyday nature of the work. The concepts here are not abstract. They describe what a county IT director does on a Monday morning, or what a poll worker does when a voter disputes a provisional ballot.

How These Terms Relate

These concepts together describe the practical, day-to-day security of running an election. Operational security is where cybersecurity and physical security meet procedure, training, and culture. Chain of custody, two-person integrity, and physical access controls are not new inventions. They are practices that have governed sensitive operations (banking, military logistics, public accounting) for decades. The terminology here adapts that lineage to the specific demands of running a fair, accurate, and defensible election.

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