IT Security Audit Services

Uncover Every Security Gap. Get a Fix Plan in 14 Days.

We audit your entire security posture across 20 NIST 800-53 domains, identify every gap, and hand you a prioritized Information Security Program Plan - not another PDF that collects dust.

Mapped to SOC 2, ISO 27001, NIST 800-171, CMMC, and HIPAA. Results delivered in 14 days. 200+ audits completed across 14 countries.

No-obligation scoping call - understand your risks before committing
Results delivered in 14 days from kickoff
50% average risk reduction within 60 days
SOC 2NIST 800-53ISO 27001CMMCHIPAAPCI DSS
IT security audit - comprehensive 20-domain security assessment
200+Security Audits Completed
20NIST 800-53 Security Domains Covered
14 DaysKickoff to Full Remediation Roadmap
50%Average Risk Reduction Within 60 Days

Most Companies Don't Know How Exposed They Are - Until It's Too Late

The average data breach now costs $4.88 million globally and a record-breaking $9.36 million in the United States, according to IBM's Cost of a Data Breach Report. Most security failures are not sophisticated zero-day exploits - they are missed configurations, outdated policies, and weak access controls that a security audit would have caught.

$4.88MGlobal average breach cost (IBM 2024)
$9.36MAverage US breach cost - record high
277 DaysAverage time to identify and contain a breach
52%of breaches expose customer PII

Source: IBM Cost of a Data Breach Report

What Is an IT Security Audit?

An IT security audit is a systematic, comprehensive evaluation of your organization's IT infrastructure, security policies, operational procedures, and technical controls - measured against an established framework such as NIST 800-53, SOC 2, ISO 27001, or CMMC.

The purpose is to identify the gap between where you are and where you need to be, then produce a concrete remediation plan to close it.

Unlike a penetration test (which simulates a specific attack), a security audit evaluates the full breadth of your security program: administrative controls, technical configurations, operational procedures, physical security, and compliance posture - across every relevant domain.

IT security audit methodology - systematic evaluation of security controls across all infrastructure layers

IT Security Audit vs. Penetration Test vs. Vulnerability Assessment

These three services are frequently confused. They answer different questions, cover different scopes, and produce very different outputs. Here is the precise distinction.

IT Security Audit

Are our security controls adequate and complete?

Scope: Entire security program: policies, processes, technical, physical

Output: Information Security Program Plan + detailed findings

Duration: 2-4 weeks

Best for: Compliance, board reporting, M&A, baseline

Our core service

Penetration Test

Can an attacker actually break in?

Scope: Specific targets: network, application, or social engineering

Output: Exploit report with proof-of-concept

Duration: 1-3 weeks

Best for: Testing defenses after controls are in place

Available as add-on

Vulnerability Assessment

What known vulnerabilities exist right now?

Scope: Specific systems: servers, endpoints, network devices

Output: Vulnerability list with severity ratings

Duration: 1-5 days

Best for: Ongoing monitoring, quick health checks

Included within audit scope

Most organizations need all three at different stages. An IT security audit should come first - it establishes your baseline and creates the improvement plan that makes penetration tests and vulnerability assessments meaningful.

18 Security Domains We Audit

Every Atlant Security IT audit covers all 20 NIST 800-53 security domains - the same framework used by US federal agencies and Fortune 500 organizations. No shortcuts. No skipped domains.

Access Control

Who can access what - and whether former employees still have keys

Identification & Authentication

MFA, passwordless auth, privileged access management

Audit & Accountability

Logging, monitoring, and evidence trail for every critical action

Configuration Management

Baseline configurations, change control, and hardening standards

Incident Response

Detection, containment, eradication, and recovery procedures

Media Protection

Data at rest encryption, removable media controls, secure disposal

Personnel Security

Background screening, onboarding/offboarding, separation of duties

Physical Protection

Facility access, environmental controls, visitor management

Risk Assessment

Threat identification, vulnerability analysis, risk determination

Security Assessment

Control testing, continuous monitoring, remediation tracking

System & Communications Protection

Network segmentation, encryption in transit, boundary defense

System & Information Integrity

Malware protection, patch management, integrity verification

Awareness & Training

Role-specific security training, phishing simulations, culture building

Maintenance

Controlled maintenance, remote maintenance security, maintenance tools

Planning

Security planning, system security plans, rules of behavior

Program Management

Security program leadership, resource allocation, risk management strategy

Cloud Security

M365 (280+ settings), AWS, Azure, Entra ID, and GCP configurations

Secure Software Development

SSDLC practices, code review, dependency management, secrets handling, OWASP compliance

DevSecOps Pipeline

CI/CD security - SAST, DAST, SCA, container scanning, infrastructure as code review

Supply Chain Risk Management

Vendor security, third-party risk, supply chain integrity controls

How the IT Security Audit Works

A structured four-phase process - from first call to signed-off remediation roadmap in 14 days.

01

Scoping Call

Free, no-obligation 30-minute call. We understand your infrastructure, compliance requirements, and risk priorities. You receive a fixed-price scope document within 24 hours.

  • Define audit scope and frameworks
  • Identify compliance targets
  • Agree evidence collection method
02

Evidence Collection

We conduct structured interviews with key personnel, review documentation and policies, collect technical configuration evidence, and run automated scans across your environment.

  • Personnel interviews
  • Documentation review
  • Configuration evidence
  • Automated vulnerability scans
03

Analysis & Mapping

Each finding is rated Critical/High/Medium/Low, mapped to your target framework(s), and cross-referenced with remediation complexity. We build the priority sequence for your 12-month roadmap.

  • Risk-rated findings
  • Framework gap mapping
  • Remediation prioritization
  • 12-month roadmap sequencing
04

Report Delivery

All deliverables delivered within 14 days. We walk you through every finding in a live review session, answer questions from your IT team and leadership, and confirm your next steps.

  • All deliverables within 14 days
  • Live findings walkthrough
  • Executive briefing session
  • 30-day follow-up Q&A included
Security auditor presenting IT security audit findings and remediation recommendations

Fixed-Price Guarantee

Every audit is scoped and priced before work begins. No hourly billing, no scope creep, no surprises. You know the exact price and timeline before committing.

What Your IT Security Audit Delivers

Every audit produces five implementation-ready deliverables. This is not a checkbox exercise - every finding includes a specific remediation action, assigned priority, and implementation month.

01

Comprehensive Security Control Review

We audit the complete set of security controls across all 20 NIST 800-53 domains. Each control is evaluated for design effectiveness and operational effectiveness - including interviews, documentation review, and technical evidence collection across on-prem, cloud (Azure, Entra ID, M365, AWS), and DevSecOps environments.

02

Information Security Program Plan

The primary deliverable: a step-by-step, month-by-month improvement roadmap spanning 12 months. Findings are organized by security domain and criticality (Critical/High/Medium/Low). Each finding includes a specific remediation action, assigned priority, and implementation month.

03

Executive Summary Report

A separate report designed for senior leadership, board members, and investors. Focuses on business risk, compliance posture, and financial impact - not technical jargon. Perfect for board presentations, due diligence packages, and regulatory submissions.

04

Technical Findings Report

The detailed technical report with every finding, evidence screenshots, severity ratings, and step-by-step remediation instructions. Split into Critical/High/Medium/Low criticality with clear prioritization.

05

Compliance Gap Matrix

A mapping of your current state to your target framework (SOC 2, NIST, ISO, CMMC, HIPAA). Each control is rated as Implemented, Partially Implemented, or Not Implemented - becoming your compliance tracking tool going forward.

Compliance Frameworks We Audit Against

Your audit is mapped to every framework relevant to your industry, clients, and regulators - simultaneously. One audit, multiple compliance requirements satisfied.

SOC 2 Type I & IINIST 800-53NIST 800-171 & CMMCISO 27001:2022HIPAA Security RulePCI DSS

We typically map findings against all frameworks relevant to your organization simultaneously - so you receive one audit that satisfies multiple compliance requirements rather than paying for separate audits per framework.

Who Needs an IT Security Audit?

If your organization handles sensitive data, serves regulated industries, or needs to demonstrate security posture to clients, investors, or regulators - you need an IT security audit.

Fintech & Financial Services

SEC, GLBA, PCI-DSS, and SOC 2 Type II compliance required for regulated financial institutions. We understand the unique security demands of payment processors, neobanks, lending platforms, and insurance technology providers.

Healthcare & Life Sciences

HIPAA Security Rule audits for organizations handling protected health information. With average healthcare breach costs at $7.42M, a comprehensive audit is essential for hospitals, medical device companies, health tech startups, and pharmaceutical firms.

SaaS & Software Companies

Cloud-native audits covering AWS, Azure, M365, DevSecOps practices, and Secure SDLC controls. Designed for SaaS platforms scaling to enterprise customers who require SOC 2 reports, security questionnaire responses, and mature security programs.

Government Contractors

CMMC Level 1-3 readiness assessments, NIST 800-171 compliance across all 110 requirements, and SPRS score validation. Essential for defense contractors, federal subcontractors, and any organization handling Controlled Unclassified Information (CUI).

Private Equity & VC Portfolio Companies

Cybersecurity due diligence assessments for acquisitions, board-ready reporting on portfolio company security posture, and standardized risk evaluation across multiple investments. Perfect for pre-acquisition diligence and ongoing portfolio oversight.

Family Offices & Wealth Management

Financial institution-grade security rigor for high-net-worth family offices and wealth management firms. Protecting sensitive financial data, estate information, and investment strategies with the same controls required of regulated financial institutions.

Results Our Clients See After an IT Security Audit

50%Average risk reduction within 60 days of receiving the audit report
200+Security audits completed across 14 countries and 10+ industries
95%of clients who implement the full roadmap achieve their compliance target
14 DaysFrom kickoff call to complete Information Security Program Plan

IT Security Audit Pricing

Fixed-price, scope-defined proposals within 24 hours of the free scoping call. No hourly billing, no scope creep.

Essentials Audit

Focused audit for startups and small teams.

From $5,000per engagement
  • Up to 50 employees
  • Single compliance framework
  • Cloud or on-prem (single environment)
  • Executive summary report
  • Remediation priority list
  • 14-day delivery
Get a Quote
Most Popular

Comprehensive Audit

Full-scope audit for growing companies.

From $12,000per engagement
  • Up to 500 employees
  • Multi-framework mapping (NIST, SOC 2, ISO)
  • Cloud + on-prem environments
  • M365 / Google Workspace / AWS security review
  • Secure Software Development (SSDLC) review
  • DevSecOps pipeline audit (CI/CD, SAST, DAST, SCA)
  • Executive & technical reports
  • Information Security Program Plan
  • Interactive consulting sessions
  • 30-day follow-up Q&A
Get a Quote

Enterprise Audit

Multi-entity, multi-country audit programs.

From $25,000per engagement
  • 500+ employees, multiple locations
  • All applicable frameworks simultaneously
  • Hybrid cloud + on-prem + remote workforce
  • M365 / Google Workspace / AWS / Azure / GCP security review
  • Secure Software Development (SSDLC) review
  • DevSecOps pipeline audit (CI/CD, SAST, DAST, SCA)
  • Board-ready executive presentation
  • Full Information Security Program Plan
  • Vendor & supply chain risk review
  • Dedicated engagement manager
  • 60-day follow-up support
Get a Quote

What Clients Say About Our IT Security Audits

From SaaS companies to financial institutions - here is what working with Atlant Security actually looks like.

"Alexander is professional, reliable and available. He is clearly an expert in his field. Building trust in cybersecurity is obviously essential and Alexander has constantly demonstrated that my trust is well-placed."

Helen Cook

Principal, GNE Advisory

"The assessment was really imposing and remarkable. It was beyond my expectations, very detailed, and things were very closely inspected and discussed. It was a great experience working with you."

Syed Haris Ahmed

Manager IT Infrastructure, Qordata

Non-public, signed and stamped references from clients who prefer not to be published are available upon request.

Frequently Asked Questions About IT Security Audits

Everything security managers, CTOs, and CEOs ask before commissioning an IT security audit.

Find Out Exactly Where Your Security Gaps Are - in 14 Days

Book a free scoping call. We discuss your environment, compliance requirements, and risk priorities. You receive a fixed-price proposal within 24 hours. The audit itself takes 14 days. No fluff, no filler - just the clearest picture of your security posture you have ever had.

Free scoping call - Fixed-price proposal in 24 hours - 14-day delivery - 30-day follow-up included

US: 650 457 0551 - UK: 020 3807 6459

Book Your Free Scoping Call

30 minutes. We understand your environment, compliance requirements, and risk priorities. You receive a fixed-price proposal within 24 hours.

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