The Reality of Endpoint Hardening
Most organizations fail 40-70% of CIS controls on their first scan. Here's why.
First-scan failure is normal
Default Windows configurations and basic Intune setups leave the majority of CIS controls unaddressed. Most organizations don't know how far off they are until they actually scan.
The benchmark is comprehensive
CIS Windows 11 v4.0.0 covers 457 individual controls across 12 policy categories. Mapping these to Intune settings catalog, custom OMA-URI, and PowerShell scripts requires deep platform knowledge.
Every category matters
Account policies, audit policies, security options, Windows Firewall, BitLocker, Defender, network settings, user rights — gaps in any category weaken the entire hardening posture.
What Unconfigured Endpoints Cost Your Business
The technical gaps are a security problem. The business consequences are a financial one.
Claims denied
Over 40% of cyber insurance claims are denied — with 82% of denials involving organizations that lacked fully implemented security controls like MFA and endpoint hardening.
Source: Portnox / IntelTech, 2025
Avg. ransomware cost
The global average cost of a ransomware attack reached $5.08M USD in 2025 — including downtime, recovery, legal fees, and reputational damage. Hardened endpoints reduce the attack surface ransomware exploits.
Source: IBM Cost of a Data Breach Report, 2025
Reactive vs. proactive cost
Organizations with reactive security postures spend over twice as much on incident response as those with proactive hardening — $17M USD vs $8M USD over a 10-year period in modeled scenarios.
Source: Analysys Mason, 2025
US avg. breach cost
The average cost of a data breach in the United States hit a record $10.22M USD in 2025 — up 9% year-over-year. Higher regulatory fines and detection costs are driving the increase.
Source: IBM Cost of a Data Breach Report, 2025
What's at Stake Without CIS Controls
Each category represents a layer of defense. Leave one unconfigured and attackers have a way in.
Policy Categories
Controls Mapped
Validated on Device
Account Policies
Weak or non-expiring passwords let attackers brute-force their way into any endpoint.
What we enforce: Password complexity, lockout thresholds, and account expiration policies enforced across all devices.
Local Policies
Default local admin accounts and permissive settings give attackers elevated access the moment they land on a device.
What we enforce: Local administrator restrictions, guest account disablement, and security-critical policy enforcement.
Audit Policy
Without audit logging, a breach can go undetected for months — you can't investigate what you didn't record.
What we enforce: Logon events, privilege use, object access, and policy changes tracked and forwarded for analysis.
User Rights Assignment
Overprivileged users can install software, change system settings, or access data they shouldn't touch.
What we enforce: Principle of least privilege enforced — only authorized accounts get elevated system rights.
Security Options
Default security options leave SMB signing disabled, anonymous access open, and UAC weakened.
What we enforce: SMB signing required, anonymous enumeration blocked, UAC enforced, and LAN Manager authentication hardened.
Windows Firewall
Disabled or misconfigured firewalls allow lateral movement — one compromised device becomes a foothold for the entire network.
What we enforce: Inbound/outbound rules enforced for Domain, Private, and Public profiles. Default-deny for inbound connections.
BitLocker Drive Encryption
A lost or stolen laptop without encryption exposes every file on the drive — client data, credentials, email.
What we enforce: Full disk encryption with TPM, startup PIN enforcement, and recovery key escrow to Entra ID.
Microsoft Defender Antivirus
Disabled real-time protection or outdated definitions leave endpoints blind to malware and ransomware.
What we enforce: Real-time protection, cloud-delivered protection, automatic sample submission, and PUA detection enforced.
Attack Surface Reduction
Office macros, script execution, and credential theft techniques are the top initial access vectors in ransomware attacks.
What we enforce: ASR rules block Office macro abuse, credential harvesting, script-based attacks, and untrusted process execution.
Network Security
Weak TLS settings, unencrypted connections, and insecure protocols expose data in transit to interception.
What we enforce: TLS 1.2+ enforced, legacy protocols disabled, LDAP signing required, and network authentication hardened.
Administrative Templates
Unconfigured GPO-equivalent settings leave browser security, remote access, and system behavior at Windows defaults — which favor usability, not security.
What we enforce: Hundreds of security-relevant settings configured — from Edge browser hardening to remote desktop restrictions.
Windows Components
Features like AutoPlay, Remote Assistance, and Windows Store apps expand the attack surface without business justification.
What we enforce: Unnecessary features disabled, telemetry minimized, and component-level security settings aligned to CIS recommendations.
How many of these categories are enforced in your environment?
Most organizations we assess have fewer than 30% of CIS controls properly configured. A baseline scan takes less than a week and shows you exactly where the gaps are.
How CIS Endpoint Hardening Works
A five-phase engagement from assessment to audit-ready documentation.
Assess
Baseline scan of your current CIS compliance posture. We identify every failing control and categorize by risk severity.
You get
Gap analysis report with risk scoring per category
Map
Each CIS control mapped to Intune settings catalog entries, security baselines, or custom OMA-URI policies. No unmapped gaps.
You get
Complete control-to-policy mapping workbook
Deploy
Configuration profiles deployed to test groups first, then production. Our engineers monitor for conflicts and user impact.
You get
Staged rollout with conflict resolution log
Validate
Post-deployment scan confirms controls are enforced at the device level. We verify actual state — not just policy assignment.
You get
Validation report with pass/fail per control
Document
Complete mapping workbook, exception register, and compliance report. Audit-ready documentation your compliance team can present.
You get
Audit-ready compliance package
Multinational firm: 68.9% CIS failure rate reduced to under 5%
A financial services firm with offices in Taiwan and Malaysia had a fully deployed Intune environment — but IRIS revealed that 68.9% of CIS Windows 11 controls were either misconfigured or unenforced. Configuration profiles existed but weren't assigned to device groups. Compliance policies were active but not aligned to CIS benchmarks.
We mapped all 457 controls to Intune, resolved 23 profile conflicts, deployed Level 1 hardening across 340 endpoints in two countries, and validated every control at the device level. Post-hardening scan: under 5% residual exceptions — all documented with business justification.
Read the full case study →Initial failure rate
Post-hardening exceptions
Endpoints hardened
Countries
Does this sound like your organization?
CIS endpoint hardening is for teams that need documented, validated security — not just policies on paper.
Audit deadline approaching
You need CIS benchmark evidence and a compliance report your auditors will accept — not a spreadsheet you built yourself.
Regulated industry
Healthcare, finance, government, or legal — your industry requires documented endpoint hardening, not just antivirus and a firewall.
Tried CIS and broke things
You applied CIS settings and broke printers, VPN, or user workflows. You need engineers who know how to harden without disruption.
Inconsistent hardening
Some devices are hardened, some aren't. Policies were applied manually and there's no way to verify what's actually enforced across the fleet.
High-security requirements
You need CIS Level 2 hardening for sensitive environments — research labs, classified networks, or high-risk endpoints handling PII.
Need ongoing compliance
You want continuous monitoring that catches configuration drift — not a one-time scan that goes stale within weeks.
CIS hardening works best with these
Hardening is one layer. These solutions complete the security stack.
Microsoft Intune
CIS controls are deployed through Intune configuration profiles. Without a properly configured Intune foundation, hardening settings conflict, fail silently, or never reach devices.
Build the foundation →Endpoint Security
Defender for Endpoint, ASR rules, and BitLocker add active protection on top of CIS hardening. Hardening reduces the attack surface — endpoint security detects what gets through.
Add active protection →SOC Monitoring
24/7 monitoring catches configuration drift and active threats against your hardened endpoints. Without monitoring, hardening degrades silently over time.
Keep it enforced →457 controls. 12 categories. How many are actually enforced on your Windows 11 endpoints?
Most organizations we assess are below 30% CIS Windows 11 compliance. A baseline scan shows you exactly where the gaps are — and what it takes to close them.