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    Cybersecurity

    Incident Response Plan Template (CMMC/NIST)

    Hatty AI
    March 12, 2026
    18 min read
    ๐Ÿ“‹

    Featured Article

    Cybersecurity

    Incident Response Plan Template (CMMC/NIST)

    Free incident response plan template for CMMC & NIST 800-171. Step-by-step IRP guide for federal contractors โ€” get compliant in weeks.

    Hatty AI
    March 12, 2026
    18 min read

    โš ๏ธ Can't Win the Contract Without Compliance

    If you're a federal contractor or defense subcontractor, you cannot be awarded government contracts without a documented cybersecurity incident response plan. DFARS 252.204-7012, NIST 800-171, and CMMC Level 2 all require it โ€” and auditors are actively checking.

    We get businesses compliant in weeks, not months. While other consultants drag assessments out for 6โ€“12 months, our accelerated compliance program has helped defense contractors across Texas achieve full NIST 800-171 compliance in as little as 4โ€“8 weeks.

    Need to be compliant now to win an active contract? Reach out today โ€” we'll build your compliance roadmap within 48 hours.

    Who Needs This Guide?

    This isn't a generic cybersecurity article. This is a practical compliance guide for businesses in the defense industrial base (DIB) who need to act now:

    ๐Ÿข Prime Contractors

    You're responsible for your entire supply chain's compliance. If your subcontractors aren't NIST 800-171 compliant, your contract is at risk. The DoD is increasingly holding primes accountable for sub-tier cybersecurity gaps.

    We help primes get their subs compliant โ€” fast. Talk to our compliance team โ†’

    ๐Ÿ”ง Subcontractors & Small Defense Businesses

    You just got told by your prime that you need to be CMMC Level 2 compliant to keep the contract. The RFP closes in 90 days. You don't have a System Security Plan, an incident response plan, or a POA&M. Sound familiar?

    We've been there. Let us get you compliant in weeks โ†’

    ๐Ÿ›๏ธ Federal Contractors Bidding on New Work

    CMMC 2.0 is live. If you're bidding on DoD contracts that involve CUI, you need to demonstrate compliance before contract award. No compliance = no contract. Period.

    See our CMMC compliance services โ†’

    ๐Ÿ’ผ Any Business Handling Sensitive Data

    Healthcare, finance, legal, manufacturing โ€” if a breach would cost you customers, lawsuits, or regulatory penalties, you need a real incident response plan. Not a template you downloaded and never read.

    Explore our managed IT services โ†’

    Why Every Federal Contractor Needs an Incident Response Plan

    An incident response plan (IRP) isn't optional โ€” it's a federal requirement. Under NIST 800-171 (Control Family 3.6 โ€” Incident Response), organizations handling Controlled Unclassified Information (CUI) must maintain documented incident response capabilities. CMMC Level 2 maps directly to these controls.

    Here's what's at stake without one:

    • โŒ Contract disqualification โ€” You literally cannot win DoD contracts without documented IR procedures
    • โŒ DFARS non-compliance โ€” Violation of DFARS 252.204-7012 can trigger False Claims Act liability
    • โŒ Supply chain rejection โ€” Primes are dropping non-compliant subs to protect their own contracts
    • โŒ 72-hour reporting failure โ€” DFARS requires reporting cyber incidents to DoD within 72 hours. Without an IRP, you'll miss this window
    • โŒ Financial devastation โ€” The average cost of a data breach for small businesses is $4.88M (IBM, 2024)

    ๐Ÿ’ก Real Talk: "We'll Get to Compliance Later" Is Costing You Contracts

    We talk to defense contractors every week who lost bids because they couldn't demonstrate NIST 800-171 compliance. The companies that won? They had their SSP, POA&M, and incident response plan ready. Don't let "later" cost you your next contract.

    The 6 Phases of a NIST-Aligned Incident Response Plan

    Your IRP must align with NIST SP 800-61 (Computer Security Incident Handling Guide) and satisfy NIST 800-171 controls 3.6.1 through 3.6.3. Here's how to build one that passes audit:

    Phase 1: Preparation โ€” Build Your Response Capability

    This is where 90% of businesses fail. Preparation isn't just about having a document โ€” it's about having the capability to respond.

    Establish Your Incident Response Team:

    • โ€ข Incident Commander: Overall response coordination and decision authority
    • โ€ข IT/Security Lead: Technical containment, forensics, and recovery
    • โ€ข Communications Lead: Internal notifications, customer communications, media
    • โ€ข Legal Counsel: Regulatory obligations, DFARS reporting, liability assessment
    • โ€ข Executive Sponsor: Budget authority and strategic decisions
    • โ€ข Compliance Officer: Ensures response actions satisfy NIST/CMMC/DFARS requirements

    Essential Preparation Activities:

    • โ€ข Document procedures for each incident type (malware, ransomware, data breach, insider threat, phishing)
    • โ€ข Maintain current network diagrams and CUI data flow maps
    • โ€ข Establish communication trees with backup contacts
    • โ€ข Pre-negotiate contracts with forensic and legal vendors
    • โ€ข Train all employees on incident recognition and reporting
    • โ€ข Maintain offline copies of critical documentation

    Phase 2: Detection & Analysis โ€” Know When You're Under Attack

    NIST 800-171 Control 3.14 (System and Information Integrity) requires continuous monitoring. You can't respond to what you can't detect.

    • โ€ข SIEM deployment โ€” Centralized log collection and correlation
    • โ€ข EDR on all endpoints โ€” Real-time threat detection on workstations and servers
    • โ€ข Network monitoring โ€” IDS/IPS for network-level threat detection
    • โ€ข Employee reporting channel โ€” Easy way for staff to report suspicious activity
    • โ€ข Automated alerting โ€” Immediate notification for critical security events

    Incident Classification Matrix:

    Severity Impact Response Time Example
    ๐ŸŸข LowMinimal24 hoursFailed login attempts, spam
    ๐ŸŸก MediumSome disruption4 hoursMalware on single workstation
    ๐ŸŸ  HighSignificant1 hourUnauthorized access to CUI systems
    ๐Ÿ”ด CriticalBusiness-threateningImmediateActive data exfiltration, ransomware

    Phase 3: Containment โ€” Stop the Bleeding

    Speed is everything. The difference between a contained incident and a catastrophic breach is often measured in minutes.

    Immediate Containment (First 60 Minutes):

    • โ€ข Isolate affected systems from the network (don't power off โ€” preserve evidence)
    • โ€ข Disable compromised user accounts
    • โ€ข Block malicious IPs at the firewall
    • โ€ข Capture volatile memory and system state for forensics
    • โ€ข Activate your communication tree

    Long-Term Containment:

    • โ€ข Apply temporary patches or configuration changes
    • โ€ข Deploy additional monitoring on affected network segments
    • โ€ข Implement emergency access controls
    • โ€ข Begin stakeholder communications

    ๐Ÿšจ DFARS 72-Hour Rule

    If you're a DoD contractor and the incident involves CUI or covered defense information, you must report to the DoD Cyber Crime Center (DC3) within 72 hours. Your IRP must include this reporting workflow with pre-drafted notification templates. Missing this window can result in contract termination and debarment.

    Phase 4: Eradication โ€” Remove the Threat Completely

    • โ€ข Identify and eliminate root cause (compromised credentials, unpatched vulnerability, etc.)
    • โ€ข Remove all malware, backdoors, and persistence mechanisms
    • โ€ข Patch exploited vulnerabilities across all systems
    • โ€ข Reset all potentially compromised credentials
    • โ€ข Verify clean state with endpoint and network scans

    Phase 5: Recovery โ€” Restore Operations Safely

    • โ€ข Restore systems from known-clean backups
    • โ€ข Implement enhanced monitoring on recovered systems
    • โ€ข Gradually restore network connectivity
    • โ€ข Validate system integrity before returning to production
    • โ€ข Document all recovery actions for audit trail

    Phase 6: Lessons Learned โ€” Close the Loop

    NIST 800-171 Control 3.6.2 requires you to track, document, and report incidents. This phase satisfies that control and makes your next response faster.

    • โ€ข Conduct post-incident review within 2 weeks
    • โ€ข Update your IRP based on what worked and what didn't
    • โ€ข Document timeline, actions taken, and outcomes
    • โ€ข Brief leadership and update your POA&M if gaps were discovered
    • โ€ข Conduct additional training if human error was a factor

    ๐ŸŽฏ Need to Be Compliant NOW to Win a Contract?

    We've helped dozens of defense contractors and federal subcontractors achieve full NIST 800-171 and CMMC Level 2 compliance โ€” many in as little as 4โ€“8 weeks.

    Here's what our accelerated compliance program includes:

    • โœ… Gap Assessment โ€” Full NIST 800-171 assessment against all 110 controls in week 1
    • โœ… System Security Plan (SSP) โ€” Complete, audit-ready SSP documentation
    • โœ… Incident Response Plan โ€” Customized IRP that satisfies Control Family 3.6
    • โœ… POA&M โ€” Plan of Action & Milestones for any gaps with remediation timeline
    • โœ… Technical Controls Implementation โ€” MFA, encryption, access controls, monitoring
    • โœ… Employee Training โ€” Security awareness training for your entire team
    • โœ… Continuous Monitoring Setup โ€” Ongoing compliance monitoring and reporting

    Stop losing contracts to non-compliance.

    Get Your Free Compliance Assessment โ†’

    For Prime Contractors: Your Supply Chain Is Your Liability

    Under CMMC 2.0, prime contractors are responsible for ensuring their subcontractors meet the required security level. If you're a Tier 1 prime working with dozens of subs, here's the reality:

    • โš ๏ธ Flow-down requirements โ€” DFARS clauses flow down to every sub handling CUI
    • โš ๏ธ SPRS score visibility โ€” The DoD can now see your subs' self-assessment scores
    • โš ๏ธ Audit liability โ€” A sub's breach can trigger an investigation of your entire supply chain
    • โš ๏ธ Contract risk โ€” Non-compliant subs can cause you to lose the prime contract

    ๐Ÿค We Help Primes Get Their Subs Compliant

    We work directly with your subcontractors to bring them into compliance quickly. Our supply chain compliance program includes:

    • โ€ข Sub-tier cybersecurity assessments
    • โ€ข Customized SSPs and IRPs for each subcontractor
    • โ€ข Group training sessions for small sub teams
    • โ€ข Monthly compliance status reporting back to the prime
    • โ€ข SPRS score improvement and submission support

    Contact us about supply chain compliance โ†’

    Compliance in Weeks, Not Months: How We Do It

    Most compliance consultants take 6โ€“12 months because they treat every engagement the same. We don't. Our accelerated methodology is built for businesses that need results now:

    1

    Week 1: Rapid Gap Assessment

    We assess your current state against all 110 NIST 800-171 controls. Not a checklist exercise โ€” a real technical assessment of your environment, policies, and procedures.

    2

    Week 2: Documentation Sprint

    We draft your SSP, incident response plan, configuration management plan, and all required policies. You review and approve โ€” we handle the heavy lifting.

    3

    Weeks 3โ€“4: Technical Implementation

    MFA deployment, encryption configuration, access control setup, SIEM/monitoring implementation, backup verification. We do the hands-on work.

    4

    Weeks 5โ€“6: Training & Validation

    Employee security training, tabletop IRP exercise, SPRS score calculation and submission, and pre-audit readiness review.

    5

    Ongoing: Continuous Monitoring

    Compliance isn't a one-time event. We provide continuous monitoring, quarterly reviews, and annual reassessment to keep you audit-ready 365 days a year.

    Testing Your Incident Response Plan

    A plan that hasn't been tested is just a document. NIST 800-171 Control 3.6.3 requires organizations to test their incident response capability. Here's how:

    Tabletop Exercises (Quarterly)

    Walk through realistic scenarios with your response team. No systems involved โ€” purely discussion-based. Example scenario: "It's Friday at 4:45 PM. Your EDR alerts on ransomware encryption starting on the file server that contains CUI. What do you do?"

    Simulation Tests (Semi-Annual)

    Controlled tests with simulated incidents. Phishing simulations, mock breach notifications, and timed response exercises.

    Full-Scale Tests (Annual)

    Complete response activation with real system isolation, forensic evidence collection, and stakeholder notifications (clearly marked as exercises).

    NIST 800-171 Incident Response Controls Checklist

    Your IRP must address these specific NIST 800-171 controls to pass a CMMC Level 2 assessment:

    • โ˜‘๏ธ 3.6.1 โ€” Establish an operational incident-handling capability including preparation, detection, analysis, containment, recovery, and user response activities
    • โ˜‘๏ธ 3.6.2 โ€” Track, document, and report incidents to designated officials and/or authorities
    • โ˜‘๏ธ 3.6.3 โ€” Test the organizational incident response capability

    Related controls your IRP should reference:

    • โ€ข 3.12.1โ€“3.12.4 โ€” Security Assessment (periodic assessments, POA&M, monitoring)
    • โ€ข 3.14.1โ€“3.14.7 โ€” System and Information Integrity (monitoring, malware protection, alerts)
    • โ€ข 3.4.1โ€“3.4.9 โ€” Configuration Management (baseline configs, change control)

    For the complete checklist: NIST 800-171 Compliance Checklist for Small Business โ†’

    Ready to Get Compliant?

    Whether you're a prime needing to secure your supply chain, a sub racing to meet CMMC requirements, or a federal contractor preparing for a new bid โ€” we can help you get there in weeks, not months.

    ๐Ÿ“ž Call us: 210.227.3444  |  ๐Ÿ“ง Email: support@hatty.ai

    Schedule Your Free Compliance Assessment โ†’

    Related Compliance Resources

    More resources: Protect Your Business from Cyberattacks ยท Essential Cybersecurity Practices ยท Ransomware Protection Strategies

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