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What Are Cybersecurity Services?
Cybersecurity services are specialized security practices that protect applications, infrastructure, data, and digital operations from vulnerabilities and cyber threats. They combine security testing, risk assessment, compliance, and proactive protection to strengthen an organization’s security posture.
For growing businesses, effective cybersecurity solutions go beyond finding vulnerabilities. They integrate security into development and operations, validate controls against business risks, and create a continuous approach to identifying, prioritizing, and resolving security weaknesses.
Frameworks we deliver against
ISO 27001
SOC 2
GDPR
HIPAA
PCI-DSS
ISO 42001
SOC 2
GDPR
HIPAA
PCI-DSS
ISO 42001
Cybersecurity Services Company for Every Stage of Your Security Lifecycle
Eight domains, one delivery team.
From a single pre-launch penetration test to a fully embedded DevSecOps practice, our cybersecurity solutions for business are scoped to where you are today and built to address evolving security risks.
Expose Hidden Web Vulnerabilities with Application Security Services
Uncover exploitable flaws across web applications, user roles, and business logic with manual application security services that go beyond automated scans.
- Authenticated and unauthenticated testing across every user role
- Manual exploitation, not just an automated scan report
- Risk-rated findings with proof-of-concept and CVSS scoring
Stop Mobile App Exploits with Mobile Application Security
Identify insecure storage, weak cryptography, API abuse, and tampering across iOS and Android with mobile security testing performed under real-world attack conditions.
- Static and dynamic analysis on rooted devices and emulators
- Insecure storage, weak cryptography and API-abuse testing
- Reverse-engineering and tamper-resistance checks
Block API Abuse with API Security Testing
Expose authorization gaps, data-validation flaws, business-logic abuse, and resource exhaustion with API security testing mapped to your actual endpoints and workflows.
- Object-level and function-level access control testing
- Business-logic abuse, rate-limiting and resource exhaustion
- Findings mapped to the OWASP API Security Top 10
Reduce Infrastructure Exposure with VAPT Services
Find exploitable network weaknesses and accumulated misconfigurations through VAPT services combining vulnerability assessment with controlled penetration testing.
- External and internal network penetration testing
- Firewall, VPN and network segmentation reviews
- Controlled exploitation with agreed rollback plans
Catch Security Risks Earlier with DevSecOps Integration
Shift security into every build with DevSecOps integration, embedding code, dependency, secrets, container, and infrastructure checks directly into existing CI/CD workflows.
- SAST and SCA wired directly into your existing pipeline
- Secrets detection before credentials ever reach a repository
- Container and infrastructure-as-code hardening
- Developer-friendly triage with no build-breaking false positives
Close Compliance Gaps with Cybersecurity Compliance Services
Prepare for ISO 27001, SOC 2, GDPR, and HIPAA requirements with structured gap analysis, remediation planning, control documentation, and audit-ready evidence.
- Framework gap analysis and remediation roadmapping
- Policy, procedure and control documentation support
- Audit-readiness reviews and evidence collection
Detect Emerging Threats with Continuous Security Monitoring
Turn point-in-time assessments into ongoing visibility with continuous monitoring and detection that tracks vulnerabilities, triages alerts, and keeps leadership informed.
- Continuous vulnerability and exposure monitoring
- Alert triage with clear, agreed escalation paths
- Monthly posture reporting for leadership and auditors
Secure Cloud Access with Identity and Cloud Security
Reduce identity, access, and cloud configuration risks with cloud security posture management across AWS, Azure, and GCP, including security reviews for AI-enabled systems.
- IAM hardening and least-privilege reviews
- Cloud security posture management across AWS, Azure and GCP
- AI/LLM system security and ISO/IEC 42001 readiness
Identify and Resolve Security Risks with a Structured Testing Methodology
Manual precision, automated rigour.
Every engagement follows the OWASP Testing Guide and OWASP Top 10 for web, mobile and APIs. Five stages, in this order, every time.
- 01Planning & reconnaissance
- 02Vulnerability scanning
- 03Manual penetration testing
- 04Analysis & reporting
- 05Remediation support
01
Planning & reconnaissance
Scope definition, rules of engagement and comprehensive asset discovery — agreed in writing before anyone touches anything.
- Scope and rules of engagement signed off in advance
- Asset discovery across domains, IP ranges and endpoints
- Test windows scheduled around your release calendar
02
Vulnerability scanning
An automated sweep establishes the baseline, so expert time goes on the findings that tooling can’t reach.
- Authenticated and unauthenticated automated sweeps
- Nessus, OpenVAS, Burp Suite and OWASP ZAP
- False positives filtered out before manual work begins
03
Manual penetration testing
Manual penetration testing uncovers business logic and chained vulnerabilities that automated scanners cannot reliably identify, because expert testers understand how your application actually works.
- Business-logic and chained-exploit testing by hand
- Privilege escalation and access-control probing
- Every finding reproduced and evidenced
04
Analysis & reporting
Risk-rated findings with CVSS scores, proof-of-concept and remediation guidance your developers can act on directly.
- CVSS-scored findings with working proof-of-concept
- Executive summary plus developer-level technical detail
- Prioritised by exploitability, not just raw severity
05
Remediation support
We stay involved through the fix. Consultation while your team remediates, then a re-test to verify closure.
- Direct developer consultation on fixes
- Post-fix re-test included in the engagement
- Sign-off documentation for auditors and customers
Maturity model
Your security evolution journey.
We assess where you are today and build the roadmap from there. Our cybersecurity risk management approach evolves with your organisation’s security maturity rather than forcing a one-size-fits-all programme.
You are here
Reactive security
Application security testing and compliance validation. Baseline established.
3–6 months
Proactive integration
Shift-left security with threat modelling and secure coding practices.
6–12 months
DevSecOps maturity
Automated security in CI/CD pipelines using SAST and SCA tooling.
12+ months
Security excellence
Continuous operations, red-team exercises and proactive threat hunting.
Protect Revenue, Compliance and Growth with Cybersecurity Services
Proactive risk identification
Discover vulnerabilities before attackers do, through real-world attack simulation across every surface.
Compliance assurance
Meet ISO 27001, SOC 2, GDPR and HIPAA mandates with expert-led gap analysis.
Faster time to market
Security-as-code removes security review as a release bottleneck.
Lower remediation cost
Fixing a finding in the pipeline costs a fraction of fixing it in production.
Continuous posture
Evolve from point-in-time testing to ongoing monitoring and threat hunting.
Commercial advantage
Demonstrate maturity to customers, partners and auditors — security as a differentiator.
60%
of Small Businesses Don’t Survive a Cyberattack
Partner with a cybersecurity services company to find vulnerabilities before attackers do!
Industry-Standard Cybersecurity Tools for Comprehensive Security Testing
The instruments we test with.
Industry-standard tooling across every attack surface, plus the custom scripts that come from twenty years of doing this.
Network & infrastructure
NmapNessusOpenVASMetasploit
Web applications
Burp Suite ProOWASP ZAPNiktoSQLMap
Mobile & wireless
MobSFFridaAircrack-ngWireshark
DevSecOps pipeline
SemgrepSnykDependency-CheckGitGuardianTruffleHogVeracode
Specialised & recon
Kali LinuxCustom scriptsRecon tooling
Standards
OWASP Top 10OWASP Testing GuideCVSSPTES / OSSTMM
Why Sigma
A Cybersecurity Services Company Built to Secure Every Attack Surface
21+ years in business
A track record across FinTech, eCommerce and regulated industries, delivering cybersecurity services for businesses with complex security requirements.
Certified practitioners
People who live in the tooling, not generalists working from a checklist.
ISO 27001 · 9001 · SOC 2
Certified as an organisation — we hold ourselves to what we test you against.
OWASP-aligned method
A documented, repeatable methodology you can show an auditor.
Test, fix, re-verify
Remediation support and post-fix re-testing are included, not billed extra.
Global delivery
Teams across the US, Australia and India for practical timezone coverage.
No slower releases
DevSecOps embedded in your pipeline rather than bolted on as a final gate.
87% repeat revenue
Company-wide. Clients keep coming back, which is the metric we care about.
Final call out
Ready to Find What Your Security Scans Miss?
Get expert-led penetration testing and cybersecurity services built around your applications, infrastructure, and business risks.
Frequently Asked Questions
What cybersecurity services does a business need?
Most businesses need a combination of application security services, API security testing, VAPT services, cybersecurity compliance services, cloud security, and DevSecOps integration. The right mix depends on your attack surface, regulatory requirements, technology stack, and cybersecurity maturity assessment.
What does a cybersecurity consulting service include?
A cybersecurity consulting service can include security assessments, vulnerability identification, penetration testing, cybersecurity risk management, compliance gap analysis, remediation planning, and ongoing security monitoring. A cybersecurity services company can align these activities to your business and security maturity.
What is included in penetration testing services?
Penetration testing services typically include reconnaissance, vulnerability scanning, manual penetration testing, controlled exploitation, risk-rated reporting, remediation guidance, and post-fix re-testing. Testing can cover web applications, mobile applications, APIs, networks, and cloud environments.
What is VAPT and why do businesses need it?
VAPT services combine vulnerability assessment with penetration testing to identify and validate exploitable security weaknesses. Businesses use VAPT to prioritize real risks, strengthen cybersecurity risk management, support compliance, and reduce exposure before attackers exploit vulnerabilities.
What does application security testing include?
Application security services include authenticated and unauthenticated testing, access-control validation, business-logic testing, vulnerability discovery, manual exploitation, and remediation verification. Testing helps identify risks that automated scanning alone may not detect.
What cybersecurity services do enterprises need?
Enterprise organizations typically require layered enterprise cybersecurity services, including application and API security testing, infrastructure VAPT, identity and access management security, cloud security posture management, DevSecOps integration, continuous monitoring, and compliance readiness.
How does DevSecOps improve application security?
DevSecOps integration embeds security checks throughout the software development lifecycle using SAST, SCA, secrets detection, container security, and infrastructure-as-code scanning. This allows teams to identify and remediate vulnerabilities earlier without making security a release bottleneck.
What cybersecurity compliance services do businesses need?
Cybersecurity compliance services and assessments can include gap analysis, control reviews, policy documentation, remediation roadmaps, and audit-evidence preparation. Common requirements include ISO 27001 compliance services, SOC 2, GDPR, HIPAA, PCI-DSS, and ISO/IEC 42001 for AI-enabled systems.
What does cloud security service include?
Cloud security services can include cloud security posture management, IAM and least-privilege reviews, configuration assessments, workload security, vulnerability management, and access-control validation across AWS, Azure, and GCP.
What does AI and LLM security testing include?
AI security assessment and LLM security testing can evaluate prompt injection, data exposure, insecure integrations, access controls, model behavior, and application-level vulnerabilities. Generative AI security can also be assessed alongside governance and ISO/IEC 42001 readiness.
How do small businesses choose cybersecurity vendors?
Small businesses should evaluate a cybersecurity services company based on relevant testing expertise, methodology, certifications, reporting quality, remediation support, compliance experience, and ability to scale from one-time assessments to ongoing cybersecurity support services.