In short

No one can seriously promise absolute security – but the risk can be reduced considerably. The key factors are regular updates, secure configuration, encrypted connections, two-factor authentication, backups and monitoring. In our experience, outdated shop systems and unmaintained plugins are among the most common entry points for attacks.

First, an honest assessment: a completely secure system does not exist – anyone promising absolute security is not acting in good faith. The realistic question is therefore not whether a shop can be attacked, but how high the hurdles are for attackers. A large share of attacks on online shops today is automated: bots systematically scan the web for known vulnerabilities in outdated shop versions, plugins and server configurations – and by no means only large shops are affected, but especially smaller ones with poor upkeep. Consistently closing these known gaps already fends off a substantial portion of attack attempts.

The most common entry points

  • Outdated software – shop system, CMS or server components without current security patches
  • Unmaintained plugins and extensions – often the weakest link, especially with abandoned projects that no longer receive updates
  • Weak credentials – simple passwords, shared accounts, missing two-factor authentication
  • Insecure custom code – for example missing input validation that enables SQL injection or cross-site scripting
  • Misconfigurations – exposed admin access, unprotected APIs, publicly reachable backups

Effective protective measures

The most important single measure is consistent update management: security patches for the shop system, plugins and server should be applied promptly – ideally after testing on a staging environment. This is exactly where maintenance agreements such as our Shopware maintenance come in, applying updates regularly and in a controlled manner. At server level, a hardened configuration, firewalls, current TLS encryption and security headers are part of the standard of professional hosting.

Organisational measures come on top: two-factor authentication for all admin accounts, individual user accounts with the minimum necessary permissions and a well-thought-out role concept. Regular backups stored separately ensure that the shop can be restored after an incident – they are the insurance for the case where other layers of protection fail. Monitoring completes the concept: detecting anomalies such as unusual login attempts or load spikes early allows you to react before major damage occurs.

An often underestimated lever is reducing the attack surface: every installed plugin, every theme and every interface increases the amount of code that can potentially contain vulnerabilities. It is therefore worth reviewing extensions critically on a regular basis and consistently uninstalling components that are no longer used instead of merely deactivating them. Care also pays off when selecting new extensions: is the plugin actively developed? Does the vendor visibly respond to security advisories? In our experience, a lean, well-maintained system is considerably easier to secure than a setup that has grown over years into dozens of extensions of varying quality.

For shop operators there is also a legal dimension: online shops process personal data such as names, addresses and order histories. The GDPR requires appropriate technical and organisational measures – and, in the event of a data breach posing a risk to those affected, notification of the supervisory authority within 72 hours. The topic can also become relevant contractually, for example when payment providers impose security requirements such as the PCI DSS rules for handling card data. Security precautions are therefore not just self-protection but also an obligation towards your customers.

How well your shop is actually positioned can only partly be judged from the outside – a structured analysis creates clarity. Our free shop check examines, among other things, the technical condition of your shop and highlights areas for action before they become a problem.

Take warning signs seriously

Unexplained redirects, unknown admin accounts, sudden performance drops or spam being sent via your domain can indicate a compromise. In such cases: act quickly, change credentials and bring in professional support.