🔐 OSI Layers & Common Cyber Attacks Explained Understanding OSI Model = understanding where & how attacks happen 💥 🔹 1️⃣ Physical Layer Transmits raw bits via cables, fiber, radio signals. ⚠️ Attacks: Cable tapping, hardware tampering, EM interference 🔹 2️⃣ Data Link Layer Handles node-to-node delivery (Ethernet, Wi-Fi). ⚠️ Attacks: MAC spoofing, ARP poisoning, switch flooding 🔹 3️⃣ Network Layer Routes packets across networks (IP, ICMP, IPSec). ⚠️ Attacks: IP spoofing, route hijacking, ICM