Compliance
Case Studies
Highlighting the value delivered through our compliance engagements with real-world challenges, practical solutions, and measurable outcomes across healthcare, enterprise, and regulated industries.
Case studies documented
Successful remediation rate
Recurring incidents post-engagement
Prepared by Our Compliance Team
Internet Access Policy — Healthcare Post-Attack Recovery
Incident Response & M365 Tenant Security Overhaul
Real Engagements.
Real Outcomes.
Each engagement below represents a real-world compliance challenge CrossRealms resolved — from post-attack recovery to full security overhauls.
Internet Access Policy Development for Post-Attack Recovery
A healthcare organization emerging from a cyberattack had no defined internet access policy in place — leaving their environment structurally vulnerable before they even came back online.
The Challenge
- Client experienced a disruptive cyberattack and was in active recovery, preparing to restore internet access
- No internet access policy existed prior to the attack — zero framework for securely reintroducing connectivity
- Environment included a complex mix of servers, user endpoints, and IoT medical devices — each with different access requirements and risk levels
- Without a structured policy, coming back online meant inheriting the same vulnerabilities that enabled the attack
The Solution
- Our team was engaged to build a comprehensive internet access policy covering the entire environment — from policy architecture to device-level enforcement.
- Designed a structured internet access policy framework tailored to the client's environment and risk profile
- Defined tiered access rules for servers, user endpoints, and IoT medical devices based on operational need and threat exposure
- Implemented category-based web filtering configured to user roles and device types
- Documented the policy as a living framework with clear procedures for ongoing governance and future updates
The Impact
- Structured and secure reintroduction of internet access post-attack — environment came back online in a stronger state than before
- A formal internet access policy now exists where there was none, significantly reducing future exposure
- Granular access control across all device types including servers, endpoints, and IoT medical devices
- Category-based filtering tailored to user roles, improving both security posture and operational efficiency
- Repeatable, updatable framework that evolves as the client's environment grows
This engagement demonstrates the value of building security policies proactively rather than reactively. By helping the client establish a structured internet access policy during their recovery, we ensured they came back online in a more secure state than they were before the attack.
Incident Response and Tenant Security Overhaul
A client under active cyberattack had a Microsoft 365 tenant federated through GoDaddy and all organizational data stored under a single user's OneDrive — creating compounding risk at every level.
The Challenge
- Client was suffering an active cyberattack while simultaneously operating with multiple critical structural security gaps
- Microsoft 365 tenant was federated through GoDaddy — severely limiting the client's administrative control over their own environment
- All organizational data was stored under a single user's OneDrive, creating extreme risk for data loss, unauthorized access, and business continuity failure
- No endpoint protection or advanced email security in place, leaving the environment blind to threat activity
The Solution
- Threat Containment & Remediation — Identified the attack vector, contained the threat, and cleared the environment of any malicious presence
- Tenant Defederation — Migrated away from GoDaddy federation to give the client full, independent administrative control over M365
- Data Restructuring — Implemented proper data governance to eliminate the single-user OneDrive risk
- Endpoint Protection — Deployed XDR across all endpoints for real-time threat detection and automated response
- Email Protection — Upgraded M365 licensing to include advanced inbound and outbound email threat coverage
- Tenant Hardening — Full configuration review and best-practice hardening across identity, access, and security settings
The Impact
- Active cyberattack successfully contained and fully remediated
- Full administrative control restored to the client — no longer dependent on a third-party provider
- Organizational data properly secured and governed — no longer at risk under a single user account
- Comprehensive endpoint and email protection now in place via XDR and upgraded M365 licensing
- Microsoft 365 tenant reviewed and hardened to industry best practices across all security dimensions
- Client now has full visibility, detection, and response capability for future threats
This engagement demonstrates the value of building security policies proactively rather than reactively. By helping the client establish a structured internet access policy during their recovery, we ensured they came back online in a more secure state than they were before the attack.