Yandeh™ Consulting LLC
Services

Eight disciplines, executed at the point where decisions become outcomes.

Yandeh™ Consulting LLC delivers experienced, hands-on leadership across security architecture, applied cryptography, AI security, and security operations. Engagements are structured for clarity, accountability, and measurable progress.

— 01

Enterprise Cybersecurity Architecture

Architectural leadership for organizations where security must hold under regulated, contested, and adversarial conditions. Engagements bring structure to identity, perimeter, and trust decisions across hybrid and multi-cloud estates.

  • Zero Trust architecture and roadmap
  • Identity & Access Management (IAM)
  • Identity federation across administrative domains
  • Hybrid and multi-cloud security architecture
  • Enterprise reference architectures
  • Perimeter modernization
— 02

Incident Response & Escalation

Command-level coordination during active incidents. Yandeh leads the room when stakes are high — aligning internal teams, MSPs, MSSPs, legal, and executive stakeholders so decisions are made at the speed events demand.

  • Active-incident command and coordination
  • Threat hunting and adversary investigation
  • Forensic and containment direction
  • Cross-vendor escalation management
  • Executive and stakeholder communication
  • Post-incident review and remediation
— 03

Audit & Compliance Readiness

Audit preparation and ongoing compliance execution that survives independent scrutiny. Yandeh produces evidence packages and control validation that auditors and regulators can verify on first review.

  • Audit preparation across major frameworks
  • Control design and validation
  • Evidence collection and packaging
  • Gap analysis and remediation planning
  • Continuous compliance execution
  • Regulator and auditor liaison
— 04

Applied Cryptography & Post-Quantum Readiness

Cryptographic architecture for systems that need to hold long after the keys are first issued. Engagements address current PKI and key custody alongside the migration path to post-quantum cryptography.

  • Enterprise PKI design and operation
  • HSM- and TEE-backed key management
  • Protocol design and review
  • Cryptographic agility and inventory
  • Post-quantum migration planning
  • Encryption services for data at rest, in transit, and in use
— 05

AI Security & Autonomous System Governance

Security for AI and agentic systems — where conventional access control ends and execution-time governance begins. Yandeh advises on protecting model deployments, agent infrastructure, and the authorization layer that decides what autonomous systems are actually allowed to do.

  • AI/LLM and agent security architecture
  • Execution-time authorization design
  • Governance for autonomous workloads
  • Adversarial robustness and red teaming
  • Model and prompt supply-chain integrity
  • AI-specific incident response planning
— 06

Secure Software Development

Security built into the engineering practice rather than bolted on after release. Yandeh works with development organizations to make secure-by-design a measurable property of the SDLC.

  • Secure SDLC design and uplift
  • Architecture and threat-model review
  • Code review for high-risk components
  • Software supply-chain integrity
  • Penetration testing coordination
  • Developer security enablement
— 07

Network & Email Security Architecture

Resilient designs for the infrastructure adversaries strike first. Engagements cover DNS, perimeter networks, and email — the surfaces where availability and trust are won or lost.

  • DNS architecture resilient to DoS and DDoS
  • Firewall architecture review and policy guidance
  • Secure email migrations (M365, Google Workspace, hybrid)
  • Email authentication (SPF, DKIM, DMARC, BIMI)
  • Edge and perimeter modernization
  • Network segmentation and microsegmentation
— 08

Security Automation & Operations

Operational security at scale. Yandeh designs and refines the systems and runbooks that allow lean teams to respond decisively, and embeds inside existing operations to elevate execution.

  • SOAR architecture and playbook design
  • Threat hunting at scale
  • Operational security engineering
  • Detection engineering uplift
  • MSP and MSSP augmentation
  • Embedded security operations leadership
Engagement

How clients work with Yandeh.

Each engagement is led under the direction of our Principal Consultant. Scope, cadence, and accountability are defined in writing before any work begins.

01.

Retainer

Ongoing advisory access with on-call escalation for incidents and decisions. Continuity of context across long-running programs.

02.

Project-Based

Defined scope and deliverables. Milestones, evidence, and a measurable end state agreed at the outset.

03.

Advisory

Board, executive, and program-level guidance on strategic security decisions, posture reviews, and emerging risk.

04.

Fractional CISO

Embedded executive security leadership — accountable, present, and operating inside your organization's authority structure.

Frequently Asked

Questions before the conversation.

Common questions from prospective clients. If your question isn't here, it belongs in your first message — we'll answer it personally.

Engagements range from short, project-based assessments lasting two to four weeks, to multi-month implementations and long-running retainers. Scope and timeline are agreed in writing before any work begins.
Hybrid by default. Most work is delivered remotely, with onsite presence scheduled for active incidents, architectural workshops, or migrations that benefit from in-person coordination.
Primarily the United States and U.S.-allied jurisdictions. We do not engage with countries subject to U.S. embargoes or comprehensive sanctions, and we follow all applicable export-control and trade-restriction requirements before accepting any engagement outside the United States.
No NDA is required for an introductory call. A mutual NDA is standard before any technical detail or environment information is exchanged.
Four hours minimum. Beyond that, scope is shaped to the engagement — short assessments, defined projects, retainers, and fractional CISO arrangements are all available.
Yes. A significant share of our work involves leading initiatives alongside internal teams, MSPs, and MSSPs — adding senior-level direction and accountability where it is needed most.
Yes. Coverage details are available upon request once an engagement is in scope.
For prospective and existing clients with an executed engagement letter or retainer, initial response is typically within hours. Cold inquiries are triaged and routed quickly during business hours.
Begin

Tell us what's at stake.

Every engagement begins with a confidential conversation. Share your environment, your constraints, and the decision that needs to be right.

Scope an engagement