22 April 2025

Cyber and Cognitive Warfare in the Digital Age

Lin Choi

What does warfare look like in 2025? For students gathered at Chung-Ang University in Seoul, the answer was clear: it’s no longer just tanks and missiles, but also algorithms, disinformation, and digital sabotage.

In the first lecture of the 2025 FNF x Hanmiyeon lecture series, Assistant Professor Tae-Eun Song from Korea National Diplomatic Academy unpacked the challenges Korea faces in responding to cyber and cognitive warfare. The lecture, themed “Cyber and Cognitive Warfare in the Digital Age,” took place on April 10, 2025, focused on how invisible battles, waged through disinformation, digital sabotage, and psychological manipulation, are reshaping the very foundations of international diplomacy and defense.

Prof. Song, an expert in cybersecurity, guided the audience through how cyberattacks have become a central tactic in modern warfare, used to disorient populations, paralyze infrastructure, and weaken a state's capacity to respond.

She examined the Russia–Ukraine war as a case in point, where cyber operations were used as a prelude to conventional attacks. As Microsoft’s Tom Burt observed, the Russian invasion effectively began not on February 24, but the day before on February 23, with a sweeping cyber assault that targeted over 300 Ukrainian systems. This shift underscores how the frontlines of modern war have expanded into digital and psychological realms, where influence, disruption, and manipulation can precede physical force.

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