CYBER-ATTACK IN ESTONIA: A NEW CHALLENGE IN THE APPLICABILITY OF INTERNATIONAL HUMANITARIAN LAW

<em>This article aimed to analyze the classification of armed conflict in Estonia's cyber-attack and how existing IHL are answering this problem, whether those regulations enough for future cases cyber-attack. This uses normative method by comparing Geneva Convention 1949 Additional Protocol I 1977 with Rule 30 Tallinn Manual 1.0 some relevant literary works, using a descriptive-analytic explain object comprehensively. The result shows that could be classified as an International Armed Conflict, which first started Non-International Conflict proving attribution from Russia Nashi Youth Group following Overall Control Tadic Case. distinction between information warfare is related physical impact, threshold under 1.0. It means also answered Jus ad Bellum's Bello terms Although, needs improvements regarding limitation issue only focused on Material Scope IHL. In addition, not legally binding because it one source international law. However, possible new norm becoming customary law future.</em>