What are key aspects of internal security and cyber security for UPSC?

Internal security focuses on tackling terrorism, Left-Wing Extremism, and porous border management, highlighting the nexus between organized crime and terror financing.
In 2026, cyber security has pivoted toward defending Critical Information Infrastructure against AI-powered attacks and deepfakes.
Use the IT Act and CERT-In frameworks to analyze how India balances national safety with "Zero-Trust" digital architectures to prevent algorithmic riots and financial fraud.