Solution · Cybersecurity Modernization
Retire Fragile Security and Replace It with an Architecture That Scales.
The Challenge
Legacy security estates were designed for an office network that no longer exists.
The Outcome
- Zero Trust, resilient architectures
- Lower operating complexity
- Controls integrated end to end
Executive Summary
- 01Modernization succeeds when identity, segmentation and tool rationalization are sequenced by business risk.
- 02Zero Trust is an architecture of cooperating controls, not a single product purchase.
- 03A control counts only when it has been tested and its evidence recorded.
The Challenge
Legacy security estates were designed for an office network that no longer exists.
Overlapping tools, flat networks and manual identity processes leave gaps that are expensive to operate.
The DAAKYI Approach
DAAKYI assesses the current estate, designs a Zero Trust target architecture and sequences the modernization so risk falls at every step.
Tools are rationalized and integrated before new ones are added.
Delivered Through These DAAKYI Services
Relevant industries
- 01
Current-state assessment
- 02
Zero Trust target architecture
- 03
Phased modernization roadmap
- 04
Integration and validation
In Depth
How the Solution Comes Together
Why Perimeter Controls Fail
A perimeter model assumes that anything inside the network can be trusted. Modern estates break that assumption. Staff work from anywhere, applications run in several clouds, and suppliers connect to internal systems. Once an attacker holds one valid credential, a flat network lets them move laterally with little resistance. Zero Trust, as described in NIST SP 800-207, removes implicit trust based on location. Every request is authenticated, authorized and evaluated against context such as device health and sensitivity of the resource. Access is granted per session, for the minimum scope needed, and the decision is logged for later review.
Identity Becomes the Control Plane
In a Zero Trust design, identity replaces the network address as the primary control point. That makes identity hygiene the first technical priority. Modernization consolidates directories, enforces strong multifactor authentication, removes standing administrative rights and automates joiner, mover and leaver processes. Service accounts and machine identities receive the same ownership and rotation discipline as human accounts. Conditional access policies then combine user, device and risk signals. Manual identity processes are where legacy estates leak most often, because orphaned accounts and excess privileges accumulate unnoticed. Automating them shrinks the attack surface and produces evidence that auditors can verify directly.
Rationalize Before You Integrate
Most legacy estates hold several products that do the same job and none that talk to each other. Each one adds licensing cost, agent load and alert noise. Rationalization maps every tool to a capability, such as endpoint detection, secure web access or log collection, and then decides what to keep, merge or retire. The tools that remain are connected through APIs and shared telemetry so that an event in one product can trigger action in another. Fewer, better-connected controls reduce operating complexity and make detection and response faster to run and easier to test.
Every control you cannot test is an assumption, and every overlapping tool is a cost you keep paying.
Capability Matrix
What the Service Includes
Architecture Review
Legacy gaps identified.
Zero Trust Design
Identity-centric access.
Tool Rationalization
Overlap removed.
Validated Deployment
Every change tested.
Operating Model
Delivered from the GUIDE · SECURE · OPERATE Pillar
Pillar position
GUIDE · SECURE · OPERATE
Delivered across all three pillars
Engagement model
Project Implementation
Design and deployment of security technologies.
Best for · Modernization and transformation
Engagement model
Advisory Engagements
Fixed-scope assessments, strategy, compliance and testing.
Best for · Defined questions with a clear deliverable
Threat Scenarios
What It Looks Like in Practice
Stolen Credential and Lateral Movement
How It Shows Up
A valid login appears on servers the user never touches, followed by remote execution tools.
Response
Segmentation and least-privilege access limit reach, while identity telemetry flags the anomaly for containment.
Orphaned Accounts
How It Shows Up
An audit finds active accounts belonging to staff or contractors who left months ago.
Response
Automated leaver workflows and periodic access recertification disable them and record the evidence.
Tool Sprawl and Alert Fatigue
How It Shows Up
Analysts triage duplicate alerts from overlapping products and miss the one that matters.
Response
Rationalization consolidates telemetry, and detections are tuned against MITRE ATT&CK tactics.
Flat IT and Operational Network
How It Shows Up
A compromised office workstation can reach production or clinical systems directly.
Response
Zones and conduits, in the spirit of IEC 62443, separate environments and restrict permitted paths.
| Scenario | How It Shows Up | Response |
|---|---|---|
| Stolen Credential and Lateral Movement | A valid login appears on servers the user never touches, followed by remote execution tools. | Segmentation and least-privilege access limit reach, while identity telemetry flags the anomaly for containment. |
| Orphaned Accounts | An audit finds active accounts belonging to staff or contractors who left months ago. | Automated leaver workflows and periodic access recertification disable them and record the evidence. |
| Tool Sprawl and Alert Fatigue | Analysts triage duplicate alerts from overlapping products and miss the one that matters. | Rationalization consolidates telemetry, and detections are tuned against MITRE ATT&CK tactics. |
| Flat IT and Operational Network | A compromised office workstation can reach production or clinical systems directly. | Zones and conduits, in the spirit of IEC 62443, separate environments and restrict permitted paths. |
Outcomes
What Your Institution Gains
- Zero Trust, resilient architectures
- Lower operating complexity
- Controls integrated end to end
Methodology
The Method, Step by Step
- 1
Inventory Current Estate
List every tool, identity store, network segment and data flow. Record owners, licenses, coverage and integrations. Compare observed practice against the control set chosen for the institution. The output is a factual baseline that separates real protection from assumed protection and shows where gaps and overlaps sit.
- 2
Rank Risk First
Identify the data, applications and processes whose loss would hurt most. Rate threats and exposure against them using a recognized method such as ISO 31000. Priorities come from business impact and likelihood, not from product categories, so early effort lands where risk reduction is greatest.
- 3
Design Target State
Define protect surfaces, trust policies, identity flows and segmentation boundaries. Decide which existing tools stay, which merge and which retire. Document the design against NIST SP 800-207 principles so that every policy decision traces to a requirement and every dependency is visible before build begins.
- 4
Migrate in Stages
Move workloads and users in small groups, starting with identity and the highest-risk systems. Run old and new controls in parallel where needed. Each stage has entry criteria, a rollback plan and an owner, so that risk falls steadily and no cutover depends on a single weekend.
- 5
Test and Evidence
Verify every control after deployment. Test policies with realistic misuse cases, confirm logging reaches the monitoring platform, and check that failover behaves as designed. Record results as evidence. Retest after every material change so that the architecture stays proven rather than assumed.
How It Works
How Cybersecurity Modernization Comes Together
- 01Assess
- 02Design
- 03Modernize
- 04Validate
Regulatory & Industry Context
The Obligations This Service Supports
Modernization aligns to NIST CSF, CIS Controls and ISO/IEC 27001.
Frameworks DAAKYI helps clients implement
- NIST CSF
- CIS Controls
- ISO/IEC 27001
Framework references describe client implementation support, not DAAKYI certifications.
Deliverables and Roles
What You Receive, and Who Does What
| Deliverable | Purpose |
|---|---|
| Current‑State Baseline Report | Documents tools, identities, segments and gaps as they actually exist. |
| Target Architecture Document | Defines the policies, zones and identity flows the estate will move toward. |
| Tool Rationalization Matrix | Maps each product to a capability and records keep, merge or retire. |
| Phased Migration Plan | Sequences changes with owners, dependencies and rollback steps. |
| Validation and Test Report | Proves each deployed control behaves as designed. |
| Role | Responsibility |
|---|---|
| Chief Information Security Officer (Client) | Owns risk appetite, approves the target architecture and sponsors sequencing decisions. |
| Identity and Access Owner (Client) | Maintains authoritative identity sources and approves access policies. |
| Security Architect (Provider) | Designs the target state and resolves integration conflicts between products. |
| Validation Engineer (Provider) | Tests deployed controls and documents the results. |
Maturity Model
Where Organizations Typically Stand
Stage 1
Fragmented
Tools are bought after incidents, networks are flat and identity is managed by hand.
Stage 2
Consolidated
Overlap is removed, central identity exists and basic segmentation is in place.
Stage 3
Zero Trust Enforced
Access decisions use identity, device and context, and policies cover critical applications.
Stage 4
Continuously Validated
Controls are tested routinely, telemetry feeds detection and changes are measured against the target design.
Frameworks and Regulation
The Standards That Shape This Work
NIST SP 800-207
Defines Zero Trust tenets and logical components such as the policy engine and enforcement point, giving the target design a shared vocabulary.
NIST CSF 2.0
Its six functions, Govern, Identify, Protect, Detect, Respond and Recover, structure the baseline and show where modernization lifts coverage.
ISO/IEC 27001:2022
Annex A's 93 controls in four themes give the control set against which gaps and evidence are measured.
Buyer Guidance
Choosing the Right Provider
What to look for
- Look for a vendor-neutral assessment that is willing to retire products, including ones the provider could sell.
- Require a target design that traces to NIST SP 800-207 and your chosen control framework.
- Insist that every phase has entry criteria, rollback steps and a named owner.
- Expect test evidence for each deployed control, not configuration screenshots alone.
Questions to ask a provider
- How do you decide which existing tools to keep?
- How will identity be modernized before network changes begin?
- What tests prove a policy works before go-live?
- How do you phase cutovers to avoid business disruption?
Technical Detail
For Architects and Security Leads
Policy Decision and Enforcement Architecture
NIST SP 800-207 separates the control plane from the data plane. A policy engine evaluates each request using inputs such as identity, device posture, threat intelligence and resource sensitivity. A policy administrator then instructs a policy enforcement point, which opens or closes the path between subject and resource. In practice, enforcement points appear as identity-aware proxies, secure web gateways, next-generation firewalls and agent-based access clients. The design task is to decide where each protect surface sits, which enforcement point guards it, and which signals feed the decision. Fail-closed behavior, logging of every decision and clear handling of legacy applications that cannot support modern authentication must be specified before deployment.
Segmenting Legacy and Operational Networks
Flat networks let one foothold reach everything. Segmentation starts with traffic discovery: observe real flows for a period, group assets by function and sensitivity, and then write allow-lists between groups. Where industrial or clinical devices cannot run agents, network-based enforcement is used. IEC 62443 describes zones and conduits for control systems, and NIST SP 800-82 gives OT security guidance. Rules should be introduced in monitor mode first, reviewed against business processes, and only then enforced. Each enforced rule needs an owner and an expiry review, otherwise exceptions accumulate and the segmentation slowly erodes back into a flat network.
Glossary
Key Terms
- Lateral Movement
- An attacker's progression from one compromised system to others inside a network.
- Policy Enforcement Point
- The component that permits or blocks a session based on decisions from the policy engine.
- Microsegmentation
- Dividing a network into small zones with explicit rules for traffic between them.
- Standing Privilege
- Administrative access that stays permanently assigned rather than being granted when needed.
Related
Explore Connected Capabilities
Proof Points
What We Can Stand Behind
- Every stage of DAAKYI's delivery methodology produces documented, auditable deliverables.
Technology partners
FAQ
Questions Leaders Ask
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