#Write Access

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Insecure OPC-UA Write Access Explained: When the Safety Interlock Is Just a Boolean
August 10, 2026 • 6 min read • 🌐 AR / EN • 🎧 Audio
OPC-UA is supposed to be the grown-up industrial protocol. Hand it a self-signed certificate and a writable safety node, and it becomes a remote kill switch. Here is how that happens and how to stop it.
#OPC-UA #ICS #SCADA #Industrial Control #Write Access

Insecure OPC-UA Write Access Explained: When the Safety Interlock Is Just a Boolean