Nevada K-12 Email Security Intelligence:
DNS Authentication Profiling of 22 School District LEAs

Lokentra Research Team
Lokentra U.S. Email Security Index (ESI) — State Intelligence Series
April 22, 2026
research@monitorworkspace.com • monitorworkspace.com/scorecard

Abstract

We present DNS email security profiling for 22 K-12 LEAs in Nevada, of which 19 have active domains (86.4% coverage). Domains were scored on the Lokentra 100-point Email Security Index (ESI) rubric (SPF 30 pts + DKIM 30 pts + DMARC 40 pts). Nevada K-12 districts achieve an average ESI score of 41.7/100, with 26.3% earning Grade A or B (strong posture) and 47.4% receiving Grade F (minimal authentication). Only 47.4% have any DMARC record, and just 26.3% have DMARC at an enforcement level (quarantine or reject) — leaving 52.6% of districts fully vulnerable to email domain spoofing. This report provides entity-level data for all 19 scored domains including provider classification, authentication status, and ESI score, sourced from NCES CCD 2024-2025 and live DNS resolution conducted April 22, 2026.

Keywords: Nevada, K-12 email security, DMARC, SPF, school district cybersecurity, DNS authentication, Google Workspace, education technology

1. Dataset Overview

Table 1. Nevada K-12 Dataset Summary
MetricValue
Total K-12 LEAs in state22
Regular school districts19
Charter LEAs1
Other LEA types (state-operated, regional, etc.)2
LEAs with active internet domain19 (86.4%)
Domains DNS-profiled19
Data freshness (NCES CCD)2024-2025 school year
DNS scan dateApril 22, 2026

2. The Human Impact: Populations at Risk

To estimate human exposure, NCES national averages are applied to CCD 2024-2025 operational school counts: 381 students per school, 51 staff per school, and 2 parents or guardians per student. Nevada K-12 districts collectively operate approximately 735 schools.

Table 2. Estimated Population Exposure from K-12 Email Security Gaps — Nevada
PopulationTotal in DatasetAt Risk (No DMARC, 52.6%)Critically Exposed (Grade F, 47.4%)
Students280,035147,298132,736
Parents and guardians560,070294,596265,473
Staff and educators37,48519,71717,767
Total people877,590461,612415,977

Estimates based on NCES national averages. Individual district enrollment data can be linked via NCES LEAID for precise counts.

3. Authentication Findings

3.1 Protocol Adoption

Table 3. Email Authentication Protocol Adoption — Nevada K-12
ProtocolNevadaNational K-12 (ESI)vs. National
SPF (any configuration)73.7%79.7%-6.0pp
DKIM (key published)36.8%59.6%-22.8pp
DMARC (any policy)47.4%55.5%-8.1pp
DMARC at enforcement (quarantine/reject)26.3%~21.0%+5.3pp
DMARC at reject (full enforcement)10.5%~12.2%-1.7pp
No MX records (not receiving email)15.8%~10.0%+5.8pp

3.2 ESI Grade Distribution

Table 4. ESI Score Grade Distribution — Nevada K-12
GradeScoreDistrictsShareInterpretation
A90–100315.8%Full enforcement
B70–89210.5%Strong posture
C50–69315.8%Partial protection
D30–49210.5%Weak configuration
F0–29947.4%Minimal/no authentication
Average score41.7 / 100

3.3 Email Provider Distribution

Table 5. Email Provider Distribution — Nevada K-12 (top providers)
ProviderDistrictsShare
Google Workspace1157.9%
Microsoft 365210.5%
Sophos15.3%

4. District-Level Data

4.1 Top Performing Districts (Best ESI Scores)

Table 6. Top 15 Nevada K-12 Districts by ESI Score
DistrictDomainCountyProviderSPFDKIMDMARC PolicyScoreGrade
HUMBOLDT COUNTY SCHOOL DISTRICT hcsdnv.com Humboldt County Google Workspace ✓ ✓ reject 95 A
DOUGLAS COUNTY SCHOOL DISTRICT dcsd.k12.nv.us Douglas County Google Workspace ✓ ✓ reject 95 A
WASHOE COUNTY SCHOOL DISTRICT washoeschools.net Washoe County Microsoft 365 ✓ ✓ quarantine 90 A
CHURCHILL COUNTY SCHOOL DISTRICT churchillcsd.com Churchill County Google Workspace ✓ ✓ quarantine 85 B
MINERAL COUNTY SCHOOL DISTRICT nvmcsd.org Mineral County Google Workspace ✓ ✓ none 70 B
ELKO COUNTY SCHOOL DISTRICT ecsdnv.net Elko County Google Workspace ✓ ✓ none 65 C
LINCOLN COUNTY SCHOOL DISTRICT lcsdnv.com Lincoln County Google Workspace ✓ ✓ none 65 C
LYON COUNTY SCHOOL DISTRICT lyoncsd.org Lyon County Google Workspace ✓ ✗ quarantine 58 C
CLARK COUNTY SCHOOL DISTRICT ccsd.net Clark County Microsoft 365 ✓ ✗ none 40 D
EUREKA COUNTY SCHOOL DISTRICT eureka.k12.nv.us Eureka County Sophos ✓ ✗ — 30 D
ESMERALDA COUNTY SCHOOL DISTRICT esmeraldacountyschools.com Esmeralda County Google Workspace ✓ ✗ — 25 F
LANDER COUNTY SCHOOL DISTRICT lander.k12.nv.us Lander County Google Workspace ✓ ✗ — 25 F
NYE COUNTY SCHOOL DISTRICT nye.k12.nv.us Nye County — ✓ ✗ — 25 F
PERSHING COUNTY SCHOOL DISTRICT pershing.k12.nv.us Pershing County Google Workspace ✓ ✗ — 25 F
STATE-SPONSORED CHARTER SCHOOLS charterschools.nv.gov Carson City — ✗ ✗ — 0 F

4.2 Districts Most in Need of Improvement (Lowest ESI Scores)

Table 7. Bottom 15 Nevada K-12 Districts by ESI Score
DistrictDomainCountyProviderSPFDKIMDMARC PolicyScoreGrade
STATE-SPONSORED CHARTER SCHOOLS charterschools.nv.gov Carson City — ✗ ✗ — 0 F
DAVIDSON ACADEMY SCHOOL DISTRICT davidsongifted.instructure.com Washoe County — ✗ ✗ — 0 F
CARSON CITY SCHOOL DISTRICT carsoncityschools.com Carson City — ✗ ✗ — 0 F
STOREY COUNTY SCHOOL DISTRICT storey.k12.nv.us Storey County Google Workspace ✗ ✗ — 0 F
WHITE PINE COUNTY SCHOOL DISTRICT whitepine.k12.nv.us White Pine County — ✗ ✗ — 0 F
ESMERALDA COUNTY SCHOOL DISTRICT esmeraldacountyschools.com Esmeralda County Google Workspace ✓ ✗ — 25 F
LANDER COUNTY SCHOOL DISTRICT lander.k12.nv.us Lander County Google Workspace ✓ ✗ — 25 F
NYE COUNTY SCHOOL DISTRICT nye.k12.nv.us Nye County — ✓ ✗ — 25 F
PERSHING COUNTY SCHOOL DISTRICT pershing.k12.nv.us Pershing County Google Workspace ✓ ✗ — 25 F
EUREKA COUNTY SCHOOL DISTRICT eureka.k12.nv.us Eureka County Sophos ✓ ✗ — 30 D
CLARK COUNTY SCHOOL DISTRICT ccsd.net Clark County Microsoft 365 ✓ ✗ none 40 D
LYON COUNTY SCHOOL DISTRICT lyoncsd.org Lyon County Google Workspace ✓ ✗ quarantine 58 C
ELKO COUNTY SCHOOL DISTRICT ecsdnv.net Elko County Google Workspace ✓ ✓ none 65 C
LINCOLN COUNTY SCHOOL DISTRICT lcsdnv.com Lincoln County Google Workspace ✓ ✓ none 65 C
MINERAL COUNTY SCHOOL DISTRICT nvmcsd.org Mineral County Google Workspace ✓ ✓ none 70 B

4.3 County-Level Summary (Top 10 Counties by District Count)

Table 8. Nevada County Distribution
CountyDistrictsWebsite Coverage
Washoe County366.7%
Carson City2100.0%
Elko County250.0%
Nye County250.0%
Churchill County1100.0%
Clark County1100.0%
Douglas County1100.0%
Esmeralda County1100.0%
Eureka County1100.0%
Humboldt County1100.0%

5. Policy Implications

These findings identify specific, actionable gaps in Nevada's K-12 email security posture. The 52.6% DMARC gap represents districts that can be impersonated by any sender, enabling phishing campaigns targeting parents, students, and educators with no authentication failure. Key observations:

6. Data Availability

The full Nevada K-12 dataset — 22 entities with NCES CCD enrichment (phone, address, grade span, school count, LEAID) and DNS authentication profiles — is available as part of the Lokentra ESI State Pack.

Table 9. Licensing Tiers
TierScopeSuggested Use
State Pack: NevadaAll 22 K-12 LEAs, full DNS profile + CCD enrichmentRegional studies, state policy, outreach
K-12 NationalAll 50 states, 20,021+ K-12 LEAsNational K-12 cybersecurity research
Full Registry801,359+ entities across all sectorsComprehensive multi-sector research
API + UpdatesQuarterly re-scan, REST APILongitudinal studies, live dashboards

Contact: research@monitorworkspace.com — Free demo at monitorworkspace.com/scorecard

Citation: Lokentra Research Team (2026). Nevada K-12 Email Security Intelligence: DNS Authentication Profiling of 22 School District LEAs. Lokentra U.S. Email Security Index (ESI) — State Intelligence Series. https://lokentra-site.web.app/research/states/nv-k12-paper.html

Data sources: NCES Common Core of Data (CCD) 2024-2025; DNS records resolved via Google Public DNS (8.8.8.8) and Cloudflare (1.1.1.1). All entity data derived from publicly accessible government registries.

National baseline figures from Lokentra U.S. Education Sector Email Security Intelligence Dataset (March 2026). See education-dataset-paper.html for full methodology.