Zero Trust Transformation
(includes Security Assessment)
Zero Trust Transformation
Stop trusting the network perimeter — verify every access, every time
The old security model assumed that once someone was inside the network, they could be trusted. That assumption doesn't hold anymore — employees work from anywhere, applications live in the cloud, and attackers who get past a single set of credentials can move freely through a flat network. Most breaches today don't come from a wall being broken down; they come from one compromised account with more access than it should have had. SiS runs a structured Zero Trust program that starts with a clear picture of where you stand today, then rebuilds identity, access, and monitoring around a single principle: never trust, always verify.
This is not a firewall upgrade or a single security tool rollout. It's a structured program covering assessment, identity and access transformation, and continuous monitoring — delivered by a Microsoft Solutions Partner with a Security specialization.
The problem organizations run into
- Implicit trust inside the network. Once a user or device is inside the perimeter, many organizations grant broad access with no further verification — exactly what an attacker exploits after one successful phishing attempt.
- Excessive standing access. Employees accumulate permissions over years of role changes and project work, far beyond what their current role actually requires.
- No consistent identity verification. Multi-factor authentication and conditional access are applied inconsistently, if at all, leaving gaps attackers actively look for.
- Limited visibility into active threats. Without centralized monitoring, unusual sign-in activity or lateral movement inside the network can go undetected for weeks or months.
- Security and productivity treated as opposites. Security controls are sometimes added in a way that frustrates employees and pushes them toward workarounds, undermining the protection they were meant to provide.
Our approach
We run this as one connected program across three phases, each with clear deliverables — so you always know what stage you're at and what you're getting.
Phase 1 — Security & Zero Trust Assessment (typically 3–5 weeks)
We establish exactly where your current security posture stands against Zero Trust principles.
- Identity and access review across Microsoft Entra ID — standing permissions, conditional access coverage, and authentication methods in use
- Network architecture review — segmentation, perimeter assumptions, and points of implicit trust
- Endpoint and device compliance review against your current management and security baselines
- Threat detection and monitoring capability review — what's currently visible, and what isn't
- A scored Zero Trust maturity report benchmarked against Microsoft's Zero Trust framework, with a prioritized roadmap
You leave this phase with a clear, evidence-based picture of your security gaps — not a generic checklist, your actual environment.
Phase 2 — Identity, Access & Network Transformation (typically 8–16 weeks)
We rebuild the core of your security model around verified identity rather than network location.
- Conditional access policy design and rollout in Microsoft Entra ID, enforcing multi-factor authentication and device compliance checks consistently
- Least-privilege access review and cleanup, removing standing permissions that exceed what each role actually needs
- Privileged access management for administrative accounts, including just-in-time access where appropriate
- Network micro-segmentation to limit lateral movement, replacing flat network assumptions with verified access at every boundary
- Device compliance policies enforced through Microsoft Intune, so only trusted, compliant devices can access company resources
Phase 3 — Continuous Monitoring & Response (ongoing)
Zero Trust isn't a one-time configuration — it requires ongoing visibility and the ability to respond quickly when something looks wrong.
- Centralized threat detection and monitoring using Microsoft Sentinel and Microsoft Defender
- Automated alerting for anomalous sign-in activity, privilege escalation, or unusual access patterns
- Regular access reviews to catch permission creep before it becomes a risk
- Quarterly security posture reporting so leadership can see progress against the Zero Trust roadmap over time
What's included
| Component | What you get |
|---|---|
| Security & Zero Trust Assessment | A scored maturity report and prioritized roadmap benchmarked against Microsoft's Zero Trust framework |
| Conditional Access & MFA Rollout | Consistent identity verification enforced across all users and devices |
| Least-Privilege Access Cleanup | Standing permissions reviewed and reduced to what each role actually needs |
| Privileged Access Management | Just-in-time access controls for administrative accounts |
| Network Micro-Segmentation | Reduced lateral movement risk through verified access at every boundary |
| Continuous Monitoring | Centralized threat detection, alerting, and quarterly posture reporting |
What you can expect to gain
- A measurably reduced attack surface — standing access and implicit trust are removed, not just documented
- Faster detection of real threats — centralized monitoring catches anomalous activity instead of it going unnoticed
- Consistent identity verification — no more gaps where MFA or conditional access was skipped
- Contained breaches, not spreading ones — micro-segmentation limits how far an attacker can move even after a compromise
- Security your employees can work with — access controls designed to verify quickly, not create daily friction
Is this the right fit for you?
This program is built for organizations that still rely heavily on network-perimeter security assumptions, or that need to demonstrate a credible security posture to customers, regulators, or cyber insurers. It's especially relevant if any of the following is true:
- Multi-factor authentication isn't consistently enforced across your organization
- Employees have accumulated access permissions over time that no one has reviewed
- You have limited visibility into unusual sign-in activity or lateral movement inside your network
- A cyber insurance renewal or compliance requirement now demands a demonstrable Zero Trust posture
- You've experienced a security incident and want to prevent it from happening the same way again
Built on Microsoft's own platform
Microsoft Entra ID (Conditional Access, Privileged Identity Management) · Microsoft Intune · Microsoft Defender (Endpoint, Identity, Cloud Apps) · Microsoft Sentinel · Azure Network Security
Typical timeline
| Weeks | Focus |
|---|---|
| 1–5 | Security & Zero Trust Assessment |
| 4–20 | Identity, Access & Network Transformation |
| Ongoing | Continuous Monitoring & Response, quarterly reporting |
Timelines flex based on organization size, existing identity infrastructure, and network complexity — the assessment phase gives us the real numbers for your specific transformation.
What you'll walk away with
- A Zero Trust maturity report benchmarked against Microsoft's framework
- Consistently enforced conditional access and multi-factor authentication
- A cleaned-up, least-privilege access model with privileged access management in place
- Network micro-segmentation reducing lateral movement risk
- Centralized monitoring in Microsoft Sentinel with ongoing quarterly posture reporting
Common questions
Will this disrupt how employees currently work?
Some change is expected — that's the point of moving away from implicit trust — but rollout is phased and paired with communication, so employees understand what's changing and why, rather than hitting unexplained access blocks.
Do we need to replace our existing security tools?
Not necessarily. We assess what you have first and build the Zero Trust model around Microsoft's native security stack, which often consolidates tools you're already paying for rather than adding new vendors.
Is this only relevant for large enterprises?
No. Zero Trust principles apply at any size — the assessment scope and rollout pace adjust to your organization's size and complexity, not the other way around.
About SiS
SiS is a Microsoft Solutions Partner with a Security specialization. We don't treat Zero Trust as a product to install — we treat it as a shift in how access is verified across your entire environment, built on an honest assessment of where you actually stand today.
Ready to see where your security posture stands? Talk to SiS about a Zero Trust Assessment.