Client Challenge
A behavioral health practice with multiple providers noticed that several clinical workstations were behaving erratically and shared drives were becoming inaccessible. Their previous break/fix provider was unreachable. The practice faced potential exposure of protected health information (PHI), possible operational shutdown, and HIPAA breach notification obligations they were not prepared to navigate.
Environment
An on-premise server hosted shared clinical documents and a legacy practice management application. Workstations were inconsistently patched, local administrator rights were broadly shared, and Microsoft 365 email was in use without multi-factor authentication. Backup existed on a directly attached drive with no offsite copy and no documented restore testing.
Risk
The immediate risk was ransomware execution that could encrypt clinical systems and PHI. The broader risk included regulatory exposure under HIPAA, loss of patient trust, and the inability to schedule or treat patients during an outage. The untested, single-location backup meant recovery was uncertain at best.
Titan's Approach
- Isolated affected workstations and the file server from the network to halt potential lateral movement.
- Reviewed logs and Microsoft 365 sign-in activity to assess whether email accounts or data had been compromised.
- Verified backup integrity and performed a controlled restore from a clean backup snapshot.
- Rebuilt affected workstations from a known-good image rather than attempting to clean potentially compromised systems.
- Implemented MFA across all Microsoft 365 accounts and removed shared local administrator credentials.
- Stood up an immutable, monitored backup with offsite replication and a documented recovery runbook.
- Worked with the practice to support their HIPAA documentation and breach assessment obligations.
Technology Improvements
- Replaced inconsistent workstation patching with centralized management and monitoring.
- Migrated shared file storage to a secured, backed-up configuration with access controls.
- Documented the full environment so future issues can be diagnosed quickly.
Security Improvements
- Enforced multi-factor authentication on every Microsoft 365 account.
- Removed shared local administrator rights in favor of least-privilege access.
- Deployed endpoint protection with managed detection and response.
- Implemented immutable, offsite backup with tested recovery procedures.
- Added email security filtering and DNS-based web protection.
Business Outcome
The practice resumed full clinical operations within a short recovery window rather than facing a prolonged outage. No confirmed PHI exposure was identified. The environment now operates under proactive monitoring with HIPAA-aligned security controls, tested backups, and a documented incident response path, replacing the reactive, unreachable support model that had left them exposed.
Lessons Learned
- A backup that has never been restored is not a recovery strategy, tested recovery is what matters.
- MFA on Microsoft 365 is one of the single highest-impact controls a healthcare practice can enforce.
- Shared local administrator credentials make containment and investigation far harder during an incident.
- Having a reachable, documented response path before an incident occurs changes the outcome entirely.
This case study is anonymized to protect client confidentiality. Details have been generalized while accurately reflecting the nature of the engagement, the risks involved, and the outcomes achieved.