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Internet Exposure Awareness – Your Lab Only
Internet Exposure Awareness – Your Lab Only Checking whether your own devices are accidentally visible on the public internet. Scanners like Shodan map exposed services. Check only your own company or lab IP: is a camera or MQTT broker exposed by mistake? Banned: mass-scanning strangers or building
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What this card says
What it is
Checking whether your own devices are accidentally visible on the public internet.
Scanners like Shodan map exposed services.
How to use it safely
Check only your own company or lab IP: is a camera or MQTT broker exposed by mistake?
Why it matters for security
Banned: mass-scanning strangers or building target lists.
Fix any exposed device: put it behind the firewall, change defaults.
| Red team (attacker) does | Blue team (defender)… |
|---|---|
| Uses public search to find open 554/1883/502 | Asset inventory + periodic own-IP exposure check |
| Screenshots random cams for clout | Illegal / unethical; Blue reports exposure to owner only |
| Assumes "obscure port = safe" | Assume scan; require auth + VPN even on odd ports |
Learn more in the lesson: 43.6 Internet Exposure Awareness – Your Lab Only