Airgapping via PLC
CyberX demonstrated how to inject specially-crafted ladder logic code into a Siemens S7-1200 PLC. The code uses memory copy operations to generate frequency-modulated RF signals slightly below the AM band (340kHz-420kHz), with the modulation representing encoded data.The emitted RF signals are a byproduct of repeatedly writing to PLC memory in a specific way.Once transmitted the Read more about Airgapping via PLC[…]