Case Study: Development of a GLBA 501(b) InfoSec Program

Kristen Thomas • December 8, 2025

A GLBA 501(b) case study showing how a $12B bank reduced control gaps and cut mean days‑to‑remediate from 90 to 25 using a custom, evidence‑first security program.

Before and After Snapshot


From audit red flags and regulatory scrutiny to regulatory acceptance.


Before: fragmented security controls, repeated audit findings, and regulator pressure under GLBA 501(b).


After: control gaps dropped by 70%, days-to-remediate fell from 90 to 25, and the audit was accepted after a single remediation cycle.


Read the step-by-step timeline, design choices that successfully satisfied the state and federal regulators.


Case Background and Program Scope


The client was a $12B state‑chartered bank operating national digital lending and payments products. GLBA 501(b) applied because the institution collected and processed nonpublic personal information across loan servicing, payments, and account management.


Trigger event: a multi-item audit finding flagged inconsistent access controls, incomplete risk assessments, and weak third‑party oversight. That finding paused a planned national rollout and started a 120‑day remediation clock.


Scope: the program covered core banking systems, payment microservices, identity providers, mobile apps, and third‑party processors. Data flows from customer onboarding to analytics were inventoried.

Constraints: limited budget for new senior hires, a tight 90–120 day remediation target, and an in‑house compliance lead who lacked deep technical experience.


Stakeholders: CISO (tech lead), GC (regulatory lead), CIO (infrastructure), Head of Product (risk owner), CRO (risk lead) and a board Risk Committee. Weekly executive steering and an Information Security Committee were established to govern decisions.


Regulatory Context and Exam Expectations


The Gramm-Leach-Bliley Act (GLBA) requires financial institutions to maintain safeguards appropriate to size and complexity. For official guidance, see the FTC guidance on the GLBA and the GLBA statutory text (Public Law 106‑102).


Examiners expect programs mapped to recognized frameworks. We used the NIST Cybersecurity Framework (CSF) and referenced NIST SP 800‑53 controls catalogue for testable control language against the requirements under GLBA. We also overlayed FFIEC cybersecurity resources and CAT, as examiners rely on these resources.


Typical examiner questions focused on ownership, risk identification, vendor control validation, encryption and access controls, logging and incident handling, and evidence of control testing. Recent enforcement themes emphasize vendor oversight and incident response; see CFPB enforcement actions and consent orders related to information security and FTC data‑security enforcement examples (Blackbaud).


Examiners expect a versioned risk register, control mapping, sample test results with methodology, incident logs, vendor SOC reports, and penetration test reports. Make each artifact easy to find. That is what speeds closure of any regulator findings.


Designing a Custom GLBA 501(b) Program


We built a pragmatic framework focused on evidence and speed. Below are the three core pillars we implemented.


Governance and role assignments


Assign clear accountabilities: The board delegated program ownership to the fractional CCO and technical ownership to the CISO. The GC controlled regulator communications.


Committee structure:  An Information Security Committee (membership from all 3 lines of defense) met weekly for the first 90 days and then biweekly. Minutes, decisions, and open items were versioned in an evidence room.


Escalation paths: High‑risk items escalated to executive steering team (program sponsors) in 48 hours and to the board in seven days if unresolved.


Ownership: The Fractional CCO chaired the initial committee, authored the governance charter, and translated examiner queries into remediation priorities


Practical tip: Document decision owners beside each risk domain in the register. That single change reduces review friction during exams and report development.


A short practical example: A vendor encryption gap sat in the register with no owner. We assigned the Head of Product as owner, created a 2‑week remediation ticket, and tracked evidence to closure. That single assignment cut review time during the exam.


Risk assessment and control mapping


Assessment approach: Asset‑based data flow mapping started at customer touchpoints. Each asset received a likelihood and impact score, producing a ranked risk list.


Control mapping: We inventoried every control linked to GLBA 501(b) control domain requirements and mapped them to NIST CSF functions. We adopted NIST SP 800‑53 language for testable objectives.  GitHub has some NIST CSF mapping templates to accelerate work.

 

Sampling:  Sampling was stratified by application/infratructure importance and data contents.


Required artifacts:  Configuration screenshots, access logs with correlated timestamps, change requests, and control testing scripts.


Example risk scoring matrix (short):

  • Likelihood: 1–5 (rare → almost certain)
  • Impact: 1–5 (minor → severe)
  • Residual risk = likelihood × impact minus control effect


Short prioritized remediation list:

  • Activate MFA on admin and privileged accounts (high priority)
  • Collect and remediate vendor SOC 2 gaps (high priority)
  • Apply encryption at rest for PII stores (medium priority)
  • Fix OWASP Top Ten app issues (medium priority)


A concrete example of evidence phrasing: "Risk 17 — Admin console MFA enforcement — Evidence: mfaenroll2024-03.csv; adminloginaudit2024-03.log; policyv2.1.pdf." Naming artifacts consistently makes mapping trivial for examiners.


Monitoring, testing, and improvement


Monitoring strategy:  Dashboards tracked control coverage, failed auth rates, anomalous data access, and patch lag. Thresholds auto‑open Jira tickets.


Testing cadence: Continuous monitoring, quarterly control testing for critical controls, semi‑annual vendor reassessments, and an annual program review.


Audit readiness: We ran pre‑exam dry runs, built a versioned evidence room, and rehearsed executive Q&A. The evidence index mapped each examiner question to the exact artifact.


Third‑party validation: We required annual pentests and vendor attestations. We used CISA guidance on penetration testing to scope pentests and AICPA SOC reporting guidance.


Practical template source: SANS incident response templates and handbook were used for IR playbooks and evidence formats.


A short analogy: Treat the evidence room like a flight data recorder: keep it clean, versioned, and easy to export. When an examiner asks for a log snippet, you should be able to hand it over in minutes, not hours.


Implementation Timeline and Project Phases


A time‑boxed, phased plan hit the regulator window while building sustainability.


Phase 1: Mobilize and baseline


Week 1–2: Kickoff, stakeholder interviews, asset inventory, and evidence room setup. Baseline risk register created.


Staffing: Internal owners assigned; Comply IQ provided a fractional CCO and a project coordinator.


Quick wins (first 30 days): activate MFA for admin panels, patch OS vulnerabilities, and collect missing SOC reports.


60‑day checklist (compact):

  1. Kickoff & inventory
  2. Baseline register & quick wins
  3. Vendor SOC collection & pentest scoping
  4. Sprint planning for high risks


Use CISA rapid assessment resources to structure the baseline.


Concrete Jira ticket example (illustrative):

  • Ticket: REM-1023 — Enforce MFA for admin console
  • Owner: Platform Security Lead
  • Acceptance: 100% admin accounts enrolled, enrollment CSV attached (mfaenroll2024-03.csv)
  • Closure evidence: adminloginaudit2024-04.log; policymfa_v1.pdf


That level of detail prevents the "where's the proof?" follow-up from examiners.


Phase 2: Remediation sprints


Sprint rhythm: 2–4 week remediation sprints with product, engineering, and legal owners.


Rituals: Sprint planning, daily standups, sprint review with the Information Security Committee, and an exam‑readiness checkpoint after each sprint.


Tracking: Use Jira; require a "test evidence" attachment for ticket closure.


Sample sprint backlog (6 items):

  1. Enforce MFA for admin consoles — evidence: enrollment logs.
  2. Patch middleware — evidence: patch logs and CVE closure.
  3. Encrypt PII buckets — evidence: config and access logs.
  4. Amend vendor contracts — evidence: executed addenda.
  5. Remediate pentest findings — evidence: retest report.
  6. Implement retention workflows — evidence: deletion logs.


Prioritize using CIS Controls prioritized implementation for quick wins.


A short sprint anecdote: One sprint stalled because a vendor refused to provide a SOC summary. The team created a compensating control ticket, documented extra monitoring, and escalated to the vendor owner. That escalation, plus a legal addendum, produced the SOC report a week later. Document the compensating control; examiners want to see the thought process.


Phase 3: Sustain and handoff


Sustainment: Quarterly testing, scheduled vendor reassessments, and continuous monitoring.


Handoff: Transfer playbooks, runbooks, and the evidence index to internal owners. We provided a 90‑day taper to ensure knowledge transfer.


Board KPIs (recommended):

  • Control coverage mapped to GLBA %
  • Residual risk by asset
  • Mean days‑to‑remediate
  • Open high‑risk issues
  • Vendors with current SOC 2 %
  • Mean time to detect incidents


SANS examples are helpful for executive one‑pager templates.


A clear handoff checklist avoids knowledge loss: Ensure playbooks include exact artifact names, ticket IDs, key regulator points, and the evidence index mapping.


Outcomes, Metrics, and Regulator Engagement


Measured results:

  • Control gaps reduced 72% (58 → 16 open items).
  • Mean days‑to‑remediate fell 90 → 25 days.
  • Evidence completeness score rose 45% → 92%.
  • Vendor SOC coverage climbed to 88%.


Exam interaction: Examiners arrived with two key vendor and encryption questions. The team presented a concise evidence index and mapped each question to artifacts. Providing SOC 2 reports, pentest retest evidence, and a versioned risk register closed most open items during the on‑site session.


Which artifacts mattered: A versioned risk register with decision history, test scripts that documented sampling, pentest retest reports, and a compact incident log. Those artifacts matched examiner expectations and sped closure.


Sample examiner Q&A snippet:

Examiner: "Show me how you validated that vendor X encrypts PII at rest."

Team: "Here is vendor X's SOC 2 report, the storage configuration screenshot (s3config2024-03.png), and the encryption key rotation logs (kmsrotation2024-02.log)."

Result: examiner accepted the explanation and moved to the next item.


ROI snapshot: Over six months, fractional leadership cost roughly $60–80k versus an estimated $250–350k for a full‑time senior CCO hire plus contractors. Savings included avoided rollout delays and reduced remediation contractor spend.


Breakdown note: The fractional model paid for itself through a mix of faster releases, lower contractor hours, and fewer escalation meetings. If you map hours saved in engineering and product to release velocity, the financial case becomes clear.


Conclusion — Key Takeaways and Next Steps


Fix governance first, then prove controls with versioned evidence.


If you have more than 30 high‑risk open items, prioritize vendor SOCs and admin MFA within the first 60 days. That triage rule helps you stabilize risk while longer remediations proceed.


Next step: Run a 60‑day baseline assessment and prioritize your top three quick wins. If governance bandwidth is limited, consider fractional CCO support to chair the initial 90 days and prep for exams.

Schedule a readiness call or a tabletop exam simulation to compress remediation timelines and increase examiner confidence.


FAQs


Q: When does GLBA 501(b) require a program?

A: If you are a financial institution that collects, stores, or transmits nonpublic personal information, GLBA’s Safeguards Rule applies. See the FTC guidance for specifics.


Q: Fractional CCO vs full‑time hire — trade‑offs?

A: Fractional CCOs deliver senior expertise quickly and predictably at lower fixed cost. Full‑time hires give continuous institutional memory. Fractional is ideal for immediate governance gaps or exam prep.


Q: What evidence do examiners expect for technical controls?

A: Configuration screenshots, access logs with timestamps, change records, sampling plans, test scripts, and retest evidence mapped to control objectives.


Q: How should vendor risk be handled under GLBA?

A: Require SOC 2 or equivalent, a vendor questionnaire, GLBA data‑handling contract clauses, and a remediation plan. Use CAIQ/STAR resources to standardize assessments.


Q: What testing cadence suits a mature program?

A: Continuous monitoring, quarterly critical control tests, semi‑annual vendor reviews, and an annual full program assessment. Include annual penetration testing using CISA guidance.


Q: How to integrate GLBA controls into agile sprints?

A: Step 1: add control acceptance criteria to user stories. Step 2: require compliance review during sprint planning. Step 3: attach test evidence to the Jira ticket before closure.


Q: How to prepare for a surprise exam — 24‑hour checklist?

A: Create an evidence index, gather SOC reports, export access logs for the period, assemble incident logs, and prepare a concise executive Q&A. Use SANS templates for IR artifacts.

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