Topic

PLC

All articles on PLC.

Cybersecurity

Firmware Tampering in Field Devices: How It Happens and How to Detect It

The firmware in OT field devices is a prime target for persistent, hard-to-detect attacks. How tampering happens, why it is so insidious and what countermeasures exist.

4 min read

Restoring a PLC configuration from a golden image in an industrial plant

Business Continuity

Backup and Recovery in OT: PLC Golden Images and Industrial Disaster Recovery

When a controller fails or ransomware hits, only one question matters: how long until you restart? In OT, backup is not copying files, it is being able to rebuild a plant.

3 min read

Representation of a compromised industrial PLC affected by a chain of CODESYS vulnerabilities

Cybersecurity

CODESYS Under Attack: Three Chained Flaws to Plant a Backdoor in a PLC

Three chained CVEs in the CODESYS Control runtime let a Service user replace the PLC application with a backdoored version and run code as root.

3 min read

WAGO industrial PLC controller with status indicators and field cables connected in an electrical panel

Cybersecurity

WAGO PLC Vulnerabilities: The Chain That Leads to Full Control

Eight vulnerabilities in the WAGO 750-8216 PLC can be chained to obtain root privileges on the device. Technical analysis and plant impact.

2 min read