Risk assessment is the process of identifying, analyzing, and prioritizing the risks that could compromise a project or an organization, to decide where to act and which measures to take.
In web app development, it means asking what could go wrong before writing a single line of code: exposed data, unauthorized access, service outages, and the penalties that follow.
This is not an academic exercise. According to IBM’s Cost of a Data Breach 2026, the average total cost of a data breach in Italy rose to €3.55 million (up from €3.31 million in 2025), and supply chain compromise is the most common initial attack vector in Italy, accounting for 18% of incidents.
Keep reading.
Table of contents
What is risk assessment in web development
In cloud software development, risk assessment is the up-front analysis of the security, privacy, business continuity, and compliance risks tied to a specific web app. It answers four questions:
- who will use it?
- what data will it process?
- which systems will it interact with?
- where will it be hosted?
In secure software development, risk assessment takes place at the start of the life cycle, alongside requirements analysis. The reason is very practical: a design flaw that surfaces after release costs far more than one avoided in time. It’s no coincidence that the OWASP Top 10:2025, the international benchmark for web application security risks, lists Insecure Design among its 10 most critical categories.
For web apps and software marketed in the EU, the issue is also a regulatory one. The Cyber Resilience Act, or CRA (Regulation EU 2024/2847), requires manufacturers to carry out a cybersecurity risk assessment and take it into account throughout planning, design, development, production, delivery, and maintenance. Reporting obligations have applied since September 11, 2026, and the regulation as a whole will apply from December 11, 2027.
The OSCRAT project (Open-Source Cyber Resilience Act Tools), co-funded by the Digital Europe Programme, is designed specifically for European SMEs that must meet these obligations. One of its partners is PMF Research, JO Group’s R&D center and our sister company.
The OSCRAT platform is open source and lets European SMEs check their digital products against CRA requirements free of charge, from the SBOM (software bill of materials) to vulnerability assessment.
How to conduct a risk assessment for a web app
There is no single procedure, but in a web development project the process usually unfolds in five steps. Let’s walk through them.
- Context and assets: map users, roles, the different types of data involved (personal, payment, health), integrations with ERP, CRM, and APIs, and the hosting infrastructure.
- Threats and vulnerabilities: use threat modeling to identify how an attack could compromise the web app’s features, then review third-party libraries and components.
- Likelihood and impact: score each risk using the formula risk = likelihood × impact.
- Treatment: decide whether to mitigate, transfer, avoid, or accept each risk.
- Documentation and review: update the risk register with every release and whenever something changes, such as a new integration or a new regulation.
The most common mistake is treating risk assessment as a document to be filed away: without periodic review and corrective action, the assessment can quickly become outdated.
What risks should you assess before developing a web app?
Before developing a web app, you should assess at least 6 categories of risk:
- Application security: access control, authentication, injection, and security misconfigurations.
- Software supply chain: vulnerable or unmaintained open-source libraries, plug-ins, and third-party services.
- Personal data protection: legal basis, retention periods, and transfers outside the EU.
- Business continuity: service outages, data loss, and missing backups or recovery plans.
- Regulatory compliance: GDPR, NIS2 for in-scope entities, the Cyber Resilience Act, and industry-specific rules.
- Project risks: ambiguous requirements, dependence on a single vendor (vendor lock-in), and underestimated scalability.
How much each risk matters depends on the context: the same flaw can have very different consequences in a travel booking web app and in a portal that processes health data.
How do you integrate GDPR and security by design into a web app?
The GDPR requires data protection by design and by default (Art. 25), security measures appropriate to the risk (Art. 32), and, for processing likely to result in a high risk, a data protection impact assessment, or DPIA (Art. 35). Risk assessment and DPIA can start from the same map of data and data flows.
In code and architecture, this means:
- collecting only the data you need and making the most protective options the default;
- encrypting data in transit and at rest—according to IBM, only 37% of organizations hit by a breach do this for sensitive data;
- applying the principle of least privilege to users, services, and APIs;
- tracking access and operations with protected logs;
- pseudonymizing data where possible and setting retention and deletion periods;
- updating dependencies through a documented process.
Security by design isn’t something you add at the end of a project: it’s written into the requirements, verified in testing, and maintained through updates.
Build your web app securely with HT Apps
We’re a software development company in business since 2004, listed in the special section for Innovative SMEs of the Italian Business Register, and specialized in web app development, artificial intelligence (AI) applications, and cybersecurity.
If you’re looking for a partner to build custom web apps, you’ve found one. With us, risk assessment is the starting point, not an afterthought:
- we analyze data, users, and integrations before choosing the tech stack;
- we turn risks into project requirements;
- we build GDPR-compliant solutions;
- we support your application after launch, too.
Contact us and tell us about your project: we’ll start by assessing risks and vulnerabilities to build secure software that stands the test of time.