Common MDM security check failures and how to fix them
MDM security check failures are the gap between policy and device reality—the moment a laptop drops from 5/5 to 3/5 in SecureSlate Asset Management because someone disabled the firewall for a demo and never turned it back on. Failures are normal; unmanaged failures become audit findings.
SecureSlate tracks five foundational checks: HD Encryption, Anti-Virus, Password Policy, Screen Policy, and Firewall. Each maps to configuration MDM can enforce and monitor. When a check fails, the fix is usually a profile push, policy correction, or user action—not a framework rewrite.
This guide covers:
- Root causes that drive check failures across macOS and Windows fleets
- Per-check failure patterns with step-by-step remediation
- A repeatable workflow IT and GRC use to restore 5/5 status
- Evidence auditors expect after remediation
- How SecureSlate prioritizes and tracks fixes before audit sampling
GIF via GIPHY
Related guides:
- MDM for compliance
- Endpoint security checks explained
- What is MDM? Basic endpoint security
- MDM security policies every growing company needs
- Screen lock policy best practices
Key takeaways
- Check failures are drift events—OS updates, user overrides, and expired software cause predictable patterns.
- Each of the five checks has distinct root causes and remediation paths; one-size-fits-all tickets waste IT time.
- Restore 5/5 before audit sampling—auditors select devices randomly; fleet average matters less than outliers.
- Retest proof closes the loop: ticket + MDM confirmation + SecureSlate status change.
- SecureSlate Asset Management surfaces failures by device and tracks mean time to remediate.
Why MDM security checks fail
MDM profiles set baseline configuration at enrollment. Checks fail when reality diverges—sometimes within hours of a well-intentioned support ticket.
| Root cause category | Examples | Checks affected |
|---|---|---|
| User override | Developer disables firewall; exec requests encryption pause | Firewall, HD Encryption |
| OS upgrade | macOS/Windows update resets or conflicts with profile | All five |
| Software expiry | AV trial ends; definitions stale >7 days | Anti-Virus |
| Profile gap | MDM rule does not cover new OS version or hardware | Varies |
| Local admin rights | Power users change settings MDM cannot re-enforce quickly | Password, Screen, Firewall |
| Enrollment incomplete | Device in MDM but baseline profile not assigned | All five |
| BYOD partial scope | Lighter profile by design | Password, Screen commonly |
Failures are not moral failures—they are operational signals. Mature programs measure failure rate, mean time to remediate, and repeat offenders rather than blaming individual users.
SecureSlate displays fleet status as X/5 so leadership sees whether failures are isolated incidents or systemic profile gaps.
HD Encryption failures and fixes
HD Encryption verifies BitLocker (Windows) or FileVault (macOS) is enabled and protecting data at rest.
Common failure modes
| Failure | Likely cause | Fix |
|---|---|---|
| Encryption disabled | User paused during disk repair or migration | Re-enable via MDM profile; verify escrow key stored |
| Encryption in progress | New device mid-enrollment | Wait for completion; set MDM compliance rule to "not compliant until complete" |
| FileVault deferred | macOS user deferred enablement at setup | Force enablement profile; block corporate access until complete |
| BitLocker suspended | Windows feature update suspended protection | Resume BitLocker; confirm recovery key in escrow |
| TPM / hardware issue | Older hardware missing TPM 2.0 | Replace hardware or document exception with risk acceptance |
Remediation steps
- Identify device in SecureSlate Asset Management (HD Encryption = fail).
- Confirm MDM encryption profile is assigned to device's smart group.
- Remote push profile or send user instruction to enable encryption.
- Verify recovery key escrow in MDM (required for support—not optional).
- Confirm pass status on next MDM sync; attach ticket closure screenshot to evidence.
See hard drive encryption compliance for deeper BitLocker and FileVault guidance.
Anti-Virus failures and fixes
Anti-Virus confirms real-time malware protection is installed, running, and updated.
Common failure modes
| Failure | Likely cause | Fix |
|---|---|---|
| AV not installed | Profile missing or user removed agent | Deploy approved AV via MDM; block non-compliant access |
| AV disabled | User stopped service for performance | Re-enable via MDM; restrict local admin if recurring |
| Definitions stale | Device offline >7 days or update failure | Force definition update; check network/proxy |
| Wrong product | User installed unapproved AV | Remove unapproved software; deploy standard agent |
| License expired | Trial or seat count exceeded | Renew license; automate deployment tied to billing |
Remediation steps
- Check MDM compliance rule matches your approved AV vendor list.
- Deploy or reinstall agent remotely where supported.
- Set MDM to report definition age; alert at >3 days stale.
- Confirm pass in SecureSlate; document repeat failures for manager escalation.
MDM verifies AV is present and running—it does not replace the AV product itself. Pair with endpoint security checks explained for program design.
Password Policy failures and fixes
Password Policy validates device login password meets minimum length, complexity, and rotation requirements defined by your organization.
Common failure modes
| Failure | Likely cause | Fix |
|---|---|---|
| Password too short | Local account not bound to directory policy | Enforce via MDM profile; prefer SSO-bound accounts |
| No complexity | macOS local policy weaker than standard | Push password policy payload; require password change at next login |
| Empty password allowed | Legacy profile or misconfiguration | Update profile; audit all smart groups |
| Cached credential mismatch | User changed password outside MDM sync window | Force sync; verify directory binding |
Remediation steps
- Review MDM password policy payload against written standard (commonly ≥12 characters, complexity enabled).
- Assign profile to all in-scope smart groups—including executives and developers.
- Trigger forced password change for failing devices.
- Confirm pass; update policy doc if MDM standard was weaker than written policy (align them).
Screen Policy failures and fixes
Screen Policy confirms auto-lock after inactivity and password required to unlock—commonly ≤15 minutes per SOC 2 and ISO expectations.
Common failure modes
| Failure | Likely cause | Fix |
|---|---|---|
| Lock set to "never" | Developer or presenter convenience | Push screen lock profile; use separate presentation exception process |
| Timeout >15 min | Profile allows 30–60 min | Tighten MDM setting to match policy |
| No password on wake | Screensaver without password requirement | Enable "require password immediately" on sleep/screen saver |
| Hot corner / tool bypass | Third-party tools prevent lock | Remove tool or exclude with documented approval |
Remediation steps
- Audit MDM screen lock payload: max idle time, password on wake.
- Push corrected profile; require user acknowledgment for recurring violations.
- Reference screen lock policy best practices for policy language.
- Verify 5/5 restoration in SecureSlate Asset Management.
Firewall failures and fixes
Firewall verifies the OS firewall is enabled for all network profiles (domain, private, public on Windows; enabled on macOS).
Common failure modes
| Failure | Likely cause | Fix |
|---|---|---|
| Firewall disabled | Local server testing, gaming, VPN conflict | Re-enable via MDM; document approved dev environments |
| Public profile off | Windows laptop on home network | Enable all profiles in MDM firewall payload |
| Third-party firewall conflict | Security suite disables OS firewall | Standardize on one approach; update compliance rule |
| Profile not applied | Gap in smart group assignment | Assign firewall profile fleet-wide |
Remediation steps
- Push "firewall enabled all profiles" MDM configuration.
- For developers needing inbound ports, use segmented lab network—not disabled firewall on corporate device.
- Confirm pass on next check-in; escalate repeat offenders to management.
Remediation workflow
Use a consistent workflow so GRC can prove failures are detected and fixed during the audit period:
| Step | Owner | Action |
|---|---|---|
| 1. Detect | SecureSlate / MDM | Daily sync identifies X/5 drops |
| 2. Triage | IT | P1 if <3/5 or executive device; P2 otherwise |
| 3. Ticket | IT | Assign device owner + IT owner; SLA 48–72 hours |
| 4. Remediate | IT + user | Profile push or guided user action |
| 5. Verify | MDM + SecureSlate | Confirm 5/5 restored |
| 6. Close | IT | Ticket with before/after status |
| 7. Report | GRC | Monthly MTTR and repeat failure metrics |
| SLA tier | Condition | Target resolution |
|---|---|---|
| P1 | <3/5 checks passing or device accesses production data | 24 hours |
| P2 | Single check failure | 72 hours |
| P3 | Encryption in progress (expected transient) | Monitor until complete |
Automate step 1—manual spreadsheet review misses drift until audit prep. SecureSlate integration eliminates the Friday afternoon "export MDM CSV" ritual.
Evidence after remediation
Auditors testing operating effectiveness want to see detection and correction, not perfect fleets:
| Evidence | Purpose |
|---|---|
| Non-compliance alert / ticket | Detection during observation period |
| Remediation steps documented | Response was appropriate |
| MDM or SecureSlate status change | Fix verified |
| Repeat sample clean | Control sustained after fix |
A device that failed Screen Policy in March, was fixed within 48 hours, and stayed 5/5 through December demonstrates operating effectiveness. A device at 5/5 all year with no monitoring process does not prove you would detect the next failure.
Store remediation tickets linked to device IDs in SecureSlate so PBC retrieval is one search, not five system logins.
Fix failures faster with SecureSlate
SecureSlate Asset Management turns MDM check failures into actionable compliance workflow:
- Per-device X/5 dashboard — prioritize the worst outliers first
- Drift notifications — know when 5/5 drops to 4/5 without waiting for monthly review
- Remediation task tracking — owners, due dates, and retest proof
- Control mapping — tie fixes to SOC 2 CC.6.8 and ISO 27001 Annex A evidence
- Audit exports — failure + fix samples for Type II fieldwork
- Fleet metrics — MTTR, enrollment rate, average checks passing
Your MDM console shows current state. SecureSlate shows compliance history—what failed, when it was fixed, and whether your program operates week after week.
FAQ: MDM security check remediation
How often should we review check failures?
Daily automated sync with weekly IT review is common for Type II programs. Monthly executive summary suffices for leadership reporting.
Can one MDM profile fix all five checks?
Often yes—a single baseline profile bundle covers all five. Separate profiles for admin vs. standard users may still be needed.
What if a user refuses to comply?
Restrict corporate resource access via conditional access until compliant. Escalate recurring refusal through management; document in personnel record.
Do we need retest proof for every failure?
For audit purposes, yes—sampled failures need ticket + status change. Automate capture via SecureSlate where possible.
What fleet average score is "good enough"?
Target ≥95% of devices at 5/5 with documented exceptions. Auditors sample individual devices—a 92% fleet average still hits 4/5 failures in sample.
How does SecureSlate differ from MDM compliance views?
MDM shows current pass/fail. SecureSlate adds control mapping, historical evidence, remediation workflows, and GRC integration across frameworks.
Should we fix failures before or during audit?
Before. Pre-fieldwork remediation with retest proof is always preferable to explaining open failures during sampling.
Disclaimer (legal note)
SecureSlate is not a law firm, and this article does not constitute legal advice or create an attorney-client relationship. Security and compliance obligations vary by industry, contract, and jurisdiction—consult qualified counsel as needed.
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