A vulnerability can extend far beyond your website

Fact sheet · updated on September 4, 2026 · based on official Belgian and European sources

What an attacker can cause through a vulnerable website

A security issue can affect more than the visible page. Depending on access and connected systems, the impact can extend to your data, customer service, payments, employees, and daily business operations.

Ransomware and extortion

A vulnerable website, management environment, or server can serve as an entry point or springboard to connected data and systems. Attackers can steal information, block services, and encrypt files to exert pressure.

Data theft

Contact details, customer accounts, orders, documents, login information, and other personal data can be viewed or copied.

Account takeover and fraud

With compromised customer or admin accounts, attackers can view or modify data, send messages, or place orders on behalf of the victim.

Phishing and malware

A hijacked website can direct visitors to fraudulent pages, spread malware, or display misleading content under your trusted domain name.

Downtime and revenue loss

Sabotage, misuse, repair work, or an attack on availability can shut down forms, webshops, and customer portals while operational costs continue.

Reputation and search damage

Unwanted content, manipulated search results, and communication about an incident can undermine trust, credibility, and online visibility.

Ransomware affects availability and confidentiality

Ransomware can combine two forms of pressure: making systems or data inaccessible and threatening to publish stolen information. As a result, an organization can be faced simultaneously with business disruption, recovery work, and the threat of publication of sensitive information. The Belgian Centre for Cybersecurity emphasizes that a single vulnerability in a system or application can be enough to make access and damage possible.

A web audit therefore strengthens more than the exterior: we assess relevant code, accounts, permissions, dependencies, configuration, connections, and recoverability as one coherent chain.

Early checks protect your business operation

A complete audit according to the fixed control framework maps commonly used attack routes while you can still decide at your own pace. Confirmed vulnerabilities are given a clear priority, carefully remediated, and then retested.

• Valuable data and functions are clearly mapped.
• Access to accounts, management, and linked systems is deliberately enhanced.
• Dependencies, external services, and production configuration are assessed together.
• Backup, recovery route, and incident contacts are aligned with continuity.
• The retest confirms which corrections actually work.

Strong security supports your GDPR responsibility

Article 32 GDPR calls for appropriate technical and organizational measures based on risk and also mentions regular testing and evaluation. A documented audit, concrete corrections and retests demonstrate your technical due diligence.

In the case of a personal data breach, preparation counts

The data controller reports a personal data breach without undue delay and, where possible, no later than 72 hours after becoming aware of it, unless it is unlikely that the breach poses a risk to the rights and freedoms of natural persons. In the case of a likely high risk, the individuals involved are also informed without undue delay. Clear logging, ownership, and reporting channels help to act faster and more substantiated.

Financial consequences can go beyond repair costs

In addition to investigation, remediation, and possible downtime, claims and supervisory measures may follow. For violations of obligations under GDPR Articles 25 through 39, including Article 32, the administrative fine may amount to €10 million, or for an enterprise 2% of the total worldwide annual turnover of the previous financial year if that amount is higher. For the more severe categories under Article 83, paragraphs 5 and 6, the maximum is €20 million, or for an enterprise 4% of that turnover if that amount is higher. These are legal ceilings. The supervisory authority assesses on a case-by-case basis whether a fine is appropriate and may also take other corrective measures.

Technical web security strengthens your broader policy

A well-secured website also supports correct data processing and vendor management. The technical findings provide usable evidence for further privacy, governance, and applicable cybersecurity processes.

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