Explore Mestric<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n Two meanings of \u201csecurity\u201d get mixed up in factories. Occupational and machine safety protects people from machines: guards, emergency stops, risk assessments. Cybersecurity protects the machines and the software from people, or from malware. The EU Machinery Regulation now addresses both sides: it adds protection of machines from people to the older focus on protecting people from machinery<\/a>.<\/p>\n The two meet in practice. NIST notes that operational technology cybersecurity is essential to safe and reliable operations, because incidents can endanger human life, damage the environment or harm equipment<\/a>. So a security question about your MES is also a safety and quality question.<\/p>\n In practice, MES security has five parts:<\/p>\n An ERP system holds business data. An MES holds business data and also talks to the machines. Researchers describing attacks on smart factories call the MES the most sensitive endpoint, because it bridges the production floor and the corporate network<\/a>. The same paper points out that even a slight alteration of the MES database could damage manufactured goods.<\/p>\n That last point is worth dwelling on. A stolen file is a data problem. A quietly changed tolerance, recipe parameter or batch record is a quality problem you may find only when a customer complains. This is why integrity deserves as much attention as confidentiality.<\/p>\n The same research describes denial-of-service attacks from malicious industrial IoT devices that can stop production<\/a>. Ransomware is the more familiar route: Dragos reports that ransomware can affect the MES and plant operations through IT and OT dependencies<\/a>. How badly depends partly on whether you can isolate the network and run operations independently of IT.<\/p>\n Connecting machines to a live MES is the point of digital manufacturing, but it removes the old separation between office and plant. The research notes that remote entry opportunities grow as IT and OT isolation decreases<\/a>, and that lateral movement from IT to OT can worsen the consequences of an attack.<\/p>\n Vulnerabilities in industrial products are regularly published, including in Slovenia. In 2026 SI-CERT reported that a hard-coded secret in an industrial database component could let an attacker with local high privileges recover administrative credentials<\/a> and potentially manipulate industrial processes or disrupt operations. The lesson is general: ask every supplier how it handles credentials and how quickly it publishes fixes. For a wider catalogue of threats, see our overview of the types of industrial data security risks every plant must track<\/a>.<\/p>\n NIST\u2019s guide to OT security recommends defence in depth. For an MES, that translates into the following.<\/p>\nTL;DR<\/h2>\n
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Vsebina<\/h2>\n
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What MES security covers, and what it does not<\/h2>\n
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Why the MES is a special target<\/h2>\n
![\"Why](\"https:\/\/mestric.com\/wp-content\/uploads\/2026\/11\/1793604796628_Why-the-MES-is-a-special-target.jpeg\")
<\/p>\nRisks to plan for<\/h2>\n
Production stoppage<\/h3>\n
More ways in as networks connect<\/h3>\n
Weak credentials in industrial software<\/h3>\n
Controls that matter most<\/h2>\n
![\"Five](\"https:\/\/mestric.com\/wp-content\/uploads\/2026\/11\/1793604772603_Five-steps-for-patching-OT-systems-safely.jpeg\")
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