What are cybersecurity services? A practical guide to what your company needs
Passende Leistungen
Kurzfassung
Cybersecurity services protect your systems, software and data: assessments, penetration testing, application security, monitoring, incident response and compliance. This guide explains each type, what to do first, how to choose a provider and when a service is not worth buying.
13 Min. Lesezeit
Cybersecurity services are the outside expertise and ongoing operations a company buys to protect its systems, software and data. They range from one-off work such as security assessments, penetration tests and secure code reviews, to continuous services such as vulnerability management, 24/7 threat monitoring and incident response, to governance work such as building a security programme or preparing for ISO 27001 or SOC 2. Which ones you need depends on what you build, what data you hold and who you sell to.
The market is crowded and often sold through fear. This guide takes a calmer route: it maps the main types of service, explains what each one actually tells you, shows where software companies in particular should start, and gives you questions to separate a useful provider from an expensive scanner with a logo. It also covers the cases where a service is not worth buying yet.
The main types of cybersecurity services
| Service | What it does | Who typically needs it | How often |
|---|---|---|---|
| Security assessment or gap analysis | Reviews your controls against a framework and produces a prioritised plan | Anyone starting or resetting a security programme | Once, then yearly |
| Vulnerability management | Scans systems and dependencies for known weaknesses and tracks fixes | Everyone with internet-facing systems | Continuous |
| Penetration testing | Skilled testers try to exploit your systems as an attacker would | Companies with customer-facing apps, or customers who ask for it | Yearly and after major changes |
| Application security | Threat modelling, secure code review, security testing in the pipeline | Companies that build software | Built into every release |
| Cloud security review | Checks cloud accounts for misconfiguration, excess permissions and exposure | Anyone running in AWS, Azure or Google Cloud | Continuous, with periodic reviews |
| Managed detection and response (MDR) | Monitors logs and endpoints around the clock and responds to threats | Companies without their own security operations team | Continuous |
| Incident response | Investigates and contains a breach, ideally under a pre-agreed retainer | Everyone, before they need it | On demand |
| Compliance readiness | Prepares for ISO 27001, SOC 2, PCI DSS or sector regulation | Companies selling to enterprises or regulated sectors | Project, then annual audits |
| Virtual CISO or advisory | Part-time senior security leadership, policy and risk decisions | Growing companies without a security leader | Ongoing, part-time |
| Security awareness training | Teaches staff to recognise phishing and social engineering | Every organisation | Ongoing, short and frequent |
Managed security service providers (MSSPs) bundle several of these, typically monitoring, device management and reporting. MDR is a narrower, more hands-on service focused on detecting and actively responding to threats. When comparing offers, ask what the provider will do when it sees something, not only what it will watch.
What today's attacks tell you about what to buy
The best evidence on how breaches actually happen comes from large incident datasets. Verizon's 2026 Data Breach Investigations Report found that 31% of breaches started with the exploitation of a vulnerability, overtaking stolen credentials as the top entry point for the first time in the report's history, and that a third party was involved in 48% of breaches. Verizon also warns that AI is helping attackers exploit known weaknesses faster, shrinking the time defenders have to patch.
The cost when things go wrong is significant. IBM's 2026 Cost of a Data Breach research put the global average cost of a breach at a record USD 4.99 million, 12% higher than a year earlier, with detection, escalation and lost business making up most of it.
Three practical conclusions follow. First, fast patching of internet-facing systems and dependencies is now the single most valuable routine control, which makes vulnerability management and a disciplined update process worth more than most exotic tools. Second, your suppliers are part of your attack surface, so vendor access, integrations and software dependencies need the same scrutiny as your own systems. Third, the ability to detect and contain an incident quickly matters as much as preventing it.
Use a framework so you buy a programme, not a pile of tools
Without a framework, security spending follows whichever vendor called last. The NIST Cybersecurity Framework 2.0, released in February 2024 and written for organisations in any sector and of any size, is a free, practical way to organise the work. It has six functions. Mapping services to them shows quickly where you are over-invested and where you have nothing at all.
- Govern: who owns security risk, what your risk tolerance is, policies, supplier risk. Services: advisory, virtual CISO, compliance readiness.
- Identify: what assets, data and suppliers you have and where the risks are. Services: assessments, asset inventory, threat modelling.
- Protect: the controls that prevent incidents, such as identity and access management, encryption, secure development and training. Services: application security, cloud security reviews, awareness training.
- Detect: noticing when something is wrong. Services: logging, monitoring, MDR, vulnerability scanning.
- Respond: containing and investigating incidents and communicating about them. Services: incident response retainers, playbooks, tabletop exercises.
- Recover: restoring normal operations. Services: backup design and testing, disaster recovery planning.
Govern is new in version 2.0, and it is the function most smaller companies skip. It is also the cheapest to get right: one named owner, a short list of agreed risks, and a decision about what you will and will not spend on.
Penetration testing, vulnerability scanning and red teaming
These three are often confused, sometimes deliberately. They answer different questions and cost very different amounts of effort.
Vulnerability scanning
Automated tools check systems, containers and dependencies for known weaknesses: missing patches, outdated libraries, common misconfigurations. Cheap to run, so it should run continuously or at least weekly. It tells you about known issues, not about flaws in your own business logic, and it produces false positives that need a human to triage. A scan report is not a penetration test, whatever the cover page says.
Vulnerability scanning
Automated tools check systems, containers and dependencies for known weaknesses: missing patches, outdated libraries, common misconfigurations. Cheap to run, so it should run continuously or at least weekly. It tells you about known issues, not about flaws in your own business logic, and it produces false positives that need a human to triage. A scan report is not a penetration test, whatever the cover page says.
Penetration testing
Skilled testers use attacker techniques against a defined scope (a web application and its API, a mobile app, a network, a cloud account) to find and prove exploitable weaknesses, including logic flaws tools cannot see, such as one customer reading another customer's invoices. The UK's National Cyber Security Centre advises treating a penetration test as assurance that your own vulnerability management works, not as your main way of finding vulnerabilities, and keeping decisions about risk and fixes in your own hands.
Red teaming
A longer, goal-based exercise that simulates a real adversary across people, processes and technology, often including phishing and physical access, to test whether your detection and response actually work. Valuable for mature organisations with a security operations capability to test. For most small and mid-sized companies it is premature; fix the basics and run regular penetration tests first.
Bug bounty
Paying independent researchers for valid vulnerability reports. It brings many testers with varied skills, but you need a triage process, a clear scope and the capacity to fix findings quickly. A simple vulnerability disclosure policy, with a published contact and a promise not to pursue good-faith researchers, is the sensible first step and costs almost nothing.
To get value from a penetration test, scope it properly: say what is in and out, share your architecture and known issues, provide test accounts for each user role, and test against a production-like environment. Ask for a report that explains each finding's real-world impact and how to reproduce it, then retest after you fix the important ones.
Application security: where software companies should start
If you build software, most of your risk lives in your own code, its dependencies and its configuration. Network-focused services will not find a broken permission check in your API. The OWASP Top 10:2025 is the standard awareness list for web application risk. Its top entries are broken access control, security misconfiguration and software supply chain failures (a broadened version of the old vulnerable and outdated components category), followed by cryptographic failures and injection. Mishandling of exceptional conditions also enters the list for the first time.
The Top 10 is an awareness document, not a checklist to certify against. For that, OWASP's Application Security Verification Standard (ASVS) gives testable requirements at three levels of rigour, and version 5.0 was published in May 2025. A good application security service will help you pick the right level for each system and build it into requirements, design and testing.
In practice, effective application security for a product team looks like this:
- Threat modelling at design time. A short session per feature asking what could go wrong, who would want it to, and what stops them. It catches the expensive problems before code exists.
- Access control designed centrally. Authorisation checked on the server for every request, with tests that try to access other tenants' and other users' data.
- Automated checks in the pipeline. Dependency and container scanning, secret detection and static analysis on every change, as covered in our DevOps services guide.
- Security-aware code review. A reviewer who knows what injection, insecure deserialisation and missing authorisation look like.
- Safe defaults. Managed identity providers, parameterised queries, framework-level output encoding, encrypted storage, strict security headers.
- AI features treated as a new attack surface. Prompt injection, data leakage through retrieval, and over-permissive tools given to AI agents need their own review. Our guide on adding AI to your product covers this.
- Independent testing before major releases, and a fast path to fix what it finds.
Security that arrives at the end of a project is an audit. Security that arrives at the start is a design decision, and design decisions are far cheaper to change.
Compliance and regulation: what actually applies to you
Compliance is not the same as security, but it is often what triggers the budget. The ones that come up most for software companies:
- ISO/IEC 27001 is an international standard for an information security management system. It certifies that you run security as a managed, audited process, and it is widely requested by enterprise customers in Europe and the Middle East.
- SOC 2 is a US attestation report against the AICPA trust services criteria, common when selling to North American companies. A Type II report covers how controls operated over a period, usually several months.
- PCI DSS applies if you store, process or transmit payment card data. The simplest way to reduce its scope is to never touch card data yourself and use a payment provider's hosted fields or checkout.
- Data protection law such as the GDPR in Europe and its equivalents in the Gulf and elsewhere requires appropriate security for personal data and, in many cases, breach notification within tight deadlines.
- NIS2 is the EU's cybersecurity directive for medium and large organisations in 18 critical sectors, which applied from October 2024 and makes management accountable for cybersecurity risk measures, according to the European Commission.
- The Cyber Resilience Act brings security requirements for products with digital elements, including software, sold in the EU. The European Commission states that reporting obligations apply from 11 September 2026 and the main obligations from 11 December 2027.
- The EU's Digital Operational Resilience Act (DORA) applies to financial entities and their critical technology suppliers, covering ICT risk, incident reporting, resilience testing and third-party risk.
A good compliance service starts by establishing which of these actually apply, then builds controls that serve several at once. Many controls overlap: access reviews, logging, change management, supplier assessments and incident response appear in nearly all of them. If you work in fintech or healthcare, sector regulators add their own requirements on top.
What to do first: a baseline for small and mid-sized companies
If you have a limited budget, spend it in roughly this order. None of it is glamorous, and almost all of it prevents more harm than any single advanced tool.
- Name an owner. One person accountable for security decisions, with time to do it.
- Multi-factor authentication everywhere, starting with email, cloud consoles, code repositories, password managers and finance systems. Prefer phishing-resistant methods such as passkeys or hardware keys for administrators.
- Know what you have. An inventory of systems, cloud accounts, domains, data stores and suppliers with access to your data.
- Patch fast. Automatic updates where possible, and a short, tracked deadline for internet-facing systems. CISA's Known Exploited Vulnerabilities catalogue is a free, practical way to know which patches cannot wait.
- Back up and test restores, with at least one copy that ransomware cannot reach or delete.
- Least privilege. Remove standing administrator access, shared accounts and access for people who have left.
- Log the important things (sign-ins, admin actions, cloud API calls) somewhere central and tamper-resistant, and make sure someone looks.
- Secure your email domain with SPF, DKIM and DMARC so attackers cannot easily impersonate you.
- Write a one-page incident plan: who to call, who decides, how to reach a responder, how to notify customers and regulators.
- Then test: a penetration test of your most important application, and a tabletop exercise of your incident plan.
In-house, managed or project-based: choosing the delivery model
Most companies end up with a mix. A rough rule: keep ownership and risk decisions in-house, buy continuous monitoring from specialists, and use project-based experts for testing, design reviews and compliance preparation.
- In-house makes sense for the security owner, for security knowledge inside the engineering team, and eventually for a dedicated security team once you are large enough to keep specialists busy.
- Managed services (MDR, managed vulnerability scanning) make sense for 24/7 work. Few companies can staff round-the-clock monitoring themselves, and an attacker will not wait until Monday.
- Project-based specialists make sense for penetration tests, architecture reviews, secure code reviews and certification readiness, where you need depth for a few weeks rather than headcount all year.
Whatever the mix, avoid outsourcing accountability. NCSC's guidance on penetration testing makes the same point: the provider can tell you what is wrong, but deciding which risks to fix, accept or mitigate stays with you.
What drives effort, with worked examples
Security work is usually estimated in tester-days or consultant-days. The drivers are the size and complexity of the scope (number of user roles, API endpoints, integrations, environments), whether testers get credentials and documentation (testing blind takes longer and finds less), compliance requirements for evidence and reporting, and how much remediation help you want. These examples show how estimates are built and are illustrations, not quotes.
- Penetration test of a SaaS web application and its API with three user roles and multi-tenant data: often around one to two weeks of a tester's time including scoping, testing, reporting and a short retest of fixes, delivered by one or two testers.
- Security review of a cloud environment with a few accounts: a few days of a cloud security engineer to review identity, network exposure, logging, encryption and storage permissions, plus time to agree fixes with your team.
- ISO 27001 readiness for a small software company: typically several months of elapsed time, because the standard expects controls to be operating, not just documented. The external effort is a few days a month of guidance; most of the work is your own team adopting the processes.
- Building security into a new product: a threat modelling session per major feature, automated checks set up once in the pipeline, and an independent test before launch. This adds days, not months, if it starts at the beginning.
If security is part of a larger build, our software cost calculator helps size the whole project.
How to choose a cybersecurity provider
Ask these questions, and weigh the answers more than the logos on the website:
- Who will do the work, and what is their hands-on experience with systems like ours?
- Can we see a redacted sample report? Does it explain business impact and reproduction steps, or is it scanner output?
- How much of the testing is manual, and how do you test business logic and access control?
- For managed services: what exactly happens when you detect something at 3am? Who acts, within what time, and with what authority?
- What will you need from us, and what access will you hold? How is our data protected and deleted afterwards?
- Is a retest of fixes included?
- What would you tell us not to buy from you?
Red flags: guarantees that you will not be breached, scare tactics instead of risk analysis, a penetration test priced and scoped without anyone asking about your application, and long contracts for tools you have no one to operate.
How Authect approaches security
Authect is a founder-led software studio. You talk directly to the founders who build your project, never a salesperson, and every project is led by a senior engineer. Our security work centres on the software itself: threat modelling at design time, secure architecture and access control, security checks in the delivery pipeline, cloud configuration reviews, and software audits of existing systems. Our delivery is AI-accelerated, and an engineer reviews every line, which matters for security as much as for quality.
We are also honest about what a software studio is and is not. If you need round-the-clock monitoring or a formal certification audit, we will tell you so and help you scope it with a specialist, rather than stretch ourselves to sell it. You own the code, infrastructure and documentation we produce from day one, with no lock-in. We work as fixed-price projects, monthly sprints, or ongoing support and evolution, from Dubai and Spain with partners in Lithuania. Read more about our cybersecurity service, or talk to us about where your biggest risks are.
Häufige Fragen
How often should we run a penetration test?
A common baseline is once a year and after significant changes such as a major release, a new integration, a change of authentication system or a move to new infrastructure. Customers and regulators may require a specific frequency. Between tests, rely on continuous vulnerability scanning and security checks in your delivery pipeline; a yearly test only tells you about the day it ran.
What is the difference between an MSSP and MDR?
A managed security service provider (MSSP) typically runs and monitors security tools and devices for you and reports on what it sees, sometimes leaving the response to your team. Managed detection and response (MDR) focuses on actively hunting for, investigating and containing threats, usually around the clock. Labels vary between providers, so compare what each will actually do, how fast, and with what authority, when it detects an attack.
Do small businesses really need cybersecurity services?
They need cybersecurity; they do not always need to buy services. Many essentials, such as multi-factor authentication, patching, backups, least-privilege access and email domain protection, can be done internally with good guidance. Small companies usually benefit most from a short assessment to prioritise, a penetration test of their main customer-facing application, and an incident response contact agreed in advance.
ISO 27001 or SOC 2: which do we need?
Ask your customers. ISO/IEC 27001 is an international certification of your information security management system, common in Europe, the Middle East and Asia. SOC 2 is an attestation report widely expected by North American buyers. They overlap heavily, so if you need both, build one set of controls and map it to each. If no customer is asking yet, a well-documented security programme aligned with a framework such as NIST CSF can wait for certification until it pays off.
Isn't our cloud provider responsible for security?
Only for its part. Under the shared responsibility model, providers such as AWS, Azure and Google Cloud secure their data centres, hardware and core services. You remain responsible for your data, user accounts and permissions, configuration, network exposure and application code. Many cloud incidents start on the customer side: a public storage bucket, leaked access keys or an unpatched server.
Are automated security scanners enough?
They are necessary but not sufficient. Scanners are good at finding known vulnerabilities in dependencies, containers and common misconfigurations, and they should run continuously. They are poor at finding flaws in your business logic and access control, such as one customer being able to see another's data, which are among the most damaging issues in real applications. Combine automated scanning with threat modelling, security-aware code review and periodic manual testing.
What should we do in the first hours after a suspected breach?
Follow your incident plan if you have one. Contain without destroying evidence: isolate affected systems rather than wiping them, revoke compromised credentials and keep logs. Call your incident response provider or a specialist early. Keep a written timeline of what you know and when. Check your legal obligations, because data protection laws and sector regulations can require notification to regulators and affected people within tight deadlines.
