Cybersecurity Fundamentals 10

Part 10: IoT Security — The Invisible Danger in Your Smart Devices

From your smartwatch to your smart fridge — if it's online, it's hackable.

The Internet of Things (IoT) has revolutionized convenience — but opened a new door for cybercriminals.

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What is IoT?

Devices connected to the internet that aren't traditional computers:

• Smart bulbs

• Home security cams

• Fitness trackers

• Smart TVs

• Industrial sensors

"Tumhare ghar ka CCTV agar open port par pada hai, toh koi bhi India ke bahar se dekh sakta hai."

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Why IoT is Vulnerable:

• Weak default passwords

• No auto-updates

• No built-in firewalls

• Exposed to the internet (public IPs)

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IoT Security Tips:

1. Change default login credentials

2. Disable unnecessary features (remote access, UPnP)

3. Use a separate guest network for IoT

4. Check open ports using tools like shodan.io

5. Regularly update firmware

6. Monitor traffic with apps like Fing or Wireshark

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Career Link:

Want to go into IoT Pentesting or Industrial Cybersecurity (ICS/SCADA)?
IoT security is a fast-growing niche — especially with smart cities and Industry 4.0 coming up.

Tip: Try the IoT Security room on TryHackMe perfect for beginners.

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Coming up in next part (Final): Risk Management + Your Final Cybersecurity Roadmap