An independent cybersecurity review across major Montana banks reveals a wide range of results. Many organizations handle sensitive communications daily, yet show significant gaps in email authentication and transport security.
Using data from audit.emailmenow.com, we evaluated each domain across email, website, and network security — including SPF, DKIM, DMARC, MTA-STS/TLS, and security headers.
Cybersecurity Scores of Major Montana Banks
Overall compliance scores from audit.emailmenow.com, measured June 5, 2026. Re-run any domain at the link to verify.
| Rank | Bank | Domain | Overall Score | Performance Level |
|---|---|---|---|---|
| 1 | Valley Bank of Montana | valleybankmt.com | 69% | Above Average |
| 2 | First Security Bank | ourfirstfed.com | 60% | Above Average |
| 3 | Glacier Bank | glacierbank.com | 58% | Average |
| 4 | First Interstate Bank | firstinterstatebank.com | 55% | Average |
| 5 | Stockman Bank | stockmanbank.com | 50% | Average |
| 6 | Rocky Mountain Credit Union | rmcu.org | 44% | Below Average |
What the Results Reveal
- Scores span 69% down to 44% — 0 of 6 reach a Good (70%+) posture.
- 4 of 6 scored below 60%, leaving stakeholders exposed to phishing and impersonation.
- Weak authentication undermines compliance expectations and increases BEC and wire-fraud risk.
Why This Matters in Montana
Montana banks are bound by the GLBA Safeguards Rule and FFIEC guidance. Weak email authentication is a direct path to business email compromise and wire fraud.
See also — national audit
Recommendations
- Enforce DMARC (
p=reject), strict SPF, and DKIM signing. - Add MTA-STS and website security headers.
- Run periodic domain audits and security awareness training.
Check any organization’s posture. Run a free Instant Cybersecurity Audit at audit.emailmenow.com/?industry=financial-advisors.
Contact EmailMeNow IT Consulting for help with email security hardening and compliance documentation.
Source & methodology: Overall compliance scores from the free scan at audit.emailmenow.com, measured June 5, 2026 — each domain checked for email authentication (SPF, DKIM, DMARC), transport security (MTA-STS/TLS), website security headers, and network security. Re-run any domain at the link to verify.