Enterprise digital infrastructure is growing faster than ever before. ERP systems are now the central hub through which accounting data, inventory movements, orders, customer information and analytics all flow. That’s exactly why ERP has become one of the most common targets of cyberattacks. We also write about how these systems form the foundation of business processes in the pillar article ERP, Automation and IoT, which explains why security is an inseparable part of modern business. The goal of this blog is to show how Slovak companies can effectively protect their data and which threats are most relevant to ERP.

The Most Common Threats to ERP Systems

Even if many companies feel that “this doesn’t concern them”, the statistics say otherwise. Attacks on ERP are rising mainly because they contain valuable data: invoicing, payroll, warehouse, contracts and customer data. The most common threats include: ➡ unauthorized access (stolen login credentials, weak passwords) ➡ ransomware — encryption of data and a ransom demand ➡ attacks via integration interfaces (API) ➡ data leaks during unencrypted transfers ➡ phishing and social engineering ➡ technical failures of older on-premise solutions Many of these risks are directly tied to whether the ERP system is well-connected and up to date. We explain how integrations can be done securely in the article Connecting ERP with Other Systems, where we show why it’s important to work with APIs the right way.

How to Secure Accounting, Warehouse Data and Customer Information in ERP

ERP cybersecurity isn’t a single step — it’s a combination of processes, technologies and well-configured permissions. The most important areas are:

Protecting Accounting and Financial Data

Accounting data is among the most sensitive. Protection includes:

  • regular backups,
  • separated access roles,
  • database encryption,
  • two-factor authentication for all users.

Securing Warehouse Data

The warehouse generates a lot of real-time data. It must be protected so it can’t be tampered with or falsified. Integrating warehouse movements with ERP helps eliminate errors, as discussed in detail in the article Business Process Automation.

Protecting Customer Data and GDPR

Customer data falls under the strictest legislation. A secure ERP must have:

  • activity logging,
  • control over who sees what data,
  • GDPR-friendly deletion, export and access to data,
  • auditable processes for handling data. This is the area where companies most often make mistakes, especially with manual processes and work outside the system. Cloud security vs. on-premise: Which is safer for Slovak companies? Many businesses still view cloud with suspicion, but the reality is the opposite: modern cloud ERP is often safer than local systems, especially if the company doesn’t have its own IT team. Cloud ERP provides:
  • automatic security patch updates,
  • continuous monitoring,
  • professional infrastructure (AWS, Azure),
  • encrypted transfers and data centers in the EU. On-premise solutions require:
  • your own server,
  • your own backups,
  • manual updates,
  • regular auditing and monitoring,
  • investment in security technology. We also write about the differences in ERP architectures in the article Cloud ERP vs. Traditional Solutions, which compares cost, risk and deployment speed in detail.

How to Defend Yourself: Recommendations for Slovak Companies

A secure ERP doesn’t happen by accident. It’s the result of the right decisions and procedures. Key recommendations include:

  • enable two-factor authentication for all users
  • regularly update ERP and all related modules
  • use roles and permissions that separate the duties of individual departments
  • secure API integrations (encryption, tokens, firewall)
  • carry out regular security audits and penetration tests
  • archive and back up data automatically
  • don’t use external Excel files with sensitive information Companies that have ERP as the “brain” of their operations should keep in mind that every integration, module and external device is a potential attack entry point. That’s why we also recommend a modular approach, which we discuss in the article Modular vs. Monolithic ERP — it allows more flexible management of access, updates and expansion. Why is ERP cybersecurity an investment, not a cost? ERP is the most critical system in the company. If it’s compromised, the company can lose:
  • accounting,
  • warehouse,
  • order history,
  • customer data,
  • reports and analytics,
  • the ability to operate. That’s why strong cybersecurity is not an add-on but a foundation of operations. Everything a company invests in a secure ERP comes back in stability, reliability and protection from financial and reputational risk. If you want to look at security more comprehensively, we also recommend our pillar article ERP, Automation and IoT, which puts security in the context of the entire digital infrastructure. Want to check whether your ERP is secure enough? We’ll do a brief security review of your ERP system and recommend improvements — free and with no obligation. Just drop us a line.