OSINT

Not trying to reinvent the wheel here, just good old basic OSINT

https://icsmap.shodan.io/icsmap.shodan.io

ICS map

ShodanShodan

FOFA Search EngineFOFA

Exposure Management and Threat Hunting Solutions | CensysCensys

ZoomEye - Cyberspace Search Engine

ONYPHE - Cyber Defense Search Engine

知风-互联网联网工控资产与企业分析系统

Zhifeng