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Japan: The Reluctant Cyberpower

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Asie Visions
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Asie.Visions, No. 91, March 2017
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Japan’s cyberdefenses remain underdeveloped compared to the country’s great reliance on information and communications technology. Despite Japan’s initial slow response to the security challenges emerging from cyberspace, this paper posits that cybersecurity under the administration of Japanese Prime Minister Shinzo Abe has moved to the core of the country’s national security policy. The 2020 Olympics Games are a major catalyst for this.

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Over the last two years the Japanese government has indeed laid the structural and legal foundations for becoming a serious player in cyberspace. That effort, however, remains underfunded and is slowed by overly complicated intergovernmental coordination processes and stovepiping within the government.

While Japan remains a reluctant cyberpower with a decidedly defensive outlook and a particularly change-resistant bureaucracy, plagued by vertical compartmentalization, recent initiatives and policies have made it clear that the country is moving in the direction of potentially becoming one of Asia’s more advanced cyberpowers in the not-too-distant future.

This paper first outlines an analytical framework used to evaluate Japan’s current standing and progress as a cyberpower: from whole of government (WoG) to whole of nation (WoN) and whole of system (WoS). The following three sections discuss in detail the evolutionary stages in the development of Japan’s national cybersecurity strategy. The last section deals with the Japan Self-Defense Forces’ changing role in cyberspace and how it is slowly embracing a more militarized response to state-sponsored cyberthreats.

The administration of Prime Minister Abe has been careful not to abandon the Japan Self-Defense Forces’ defensive posture in cyberspace and has not indicated that it will develop offensive cyberwar capabilities. This, however, may change should the new US administration abandon the United States’ historic solid defense commitment to Japan. In that respect, Japan’s deepening of engagement with like-minded countries will assume even greater importance over the next four years.

 

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Japan: The Reluctant Cyberpower

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Author(s)
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Center for Asian Studies
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Asia is a nerve center for multiple global economic, political and security challenges. The Center for Asian Studies provides documented expertise and a platform for discussion on Asian issues to accompany decision makers and explain and contextualize developments in the region for the sake of a larger public dialogue.

The Center's research is organized along two major axes: relations between Asia's major powers and the rest of the world; and internal economic and social dynamics of Asian countries. The Center's research focuses primarily on China, Japan, India, Taiwan and the Indo-Pacific, but also covers Southeast Asia, the Korean peninsula and the Pacific Islands. 

The Centre for Asian Studies maintains close institutional links with counterpart research institutes in Europe and Asia, and its researchers regularly carry out fieldwork in the region.

The Center organizes closed-door roundtables, expert-level seminars and a number of public events, including an Annual Conference, that welcome experts from Asia, Europe and the United States. The work of Center’s researchers, as well as that of their partners, is regularly published in the Center’s electronic journal Asie.Visions.

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Afghanistan-Pakistan: The Overlooked War at the Margins of the Middle East Conflict

Date de publication
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Accroche

Pakistan has historically maintained the closest ties to the Taliban movement and initially viewed its return to power in Afghanistan in the summer of 2021 with considerable optimism. The bilateral relationship has since deteriorated, and the two neighbors have been caught in a cycle of escalation since last fall. In October 2025, Pakistan launched its first airstrikes on Kabul. For three weeks in February–March 2026, Afghanistan intensified ground assaults on the Pakistani side of the border as well as drone attacks on Islamabad and Rawalpindi. Pakistan, for its part, has intensified airstrikes on Afghan border areas, as well as on Kabul and Kandahar. Given the dynamics at play at the bilateral and regional levels, the prospects for a sustained return to stability appear limited.

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European Union-India: Lasting Rapprochement or Partnership of Convenience?

Date de publication
26 February 2026
Accroche

The partnership between the European Union (EU) and India has long been limited to economic exchanges. Its political dimension has gradually developed, culminating in its elevation to the status of a “strategic partnership” in 2004. However, the failure of negotiations for a free-trade agreement in 2013 slowed this momentum. Since the early 2020s, in an uncertain geopolitical context, bilateral rapprochement has gained new momentum.

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Japan’s Takaichi Landslide: A New Face of Power

Date de publication
11 February 2026
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Prime Minister Sanae Takaichi has turned her exceptional popularity into a historic political victory. The snap elections of February 8 delivered an overwhelming majority for the Liberal Democratic Party (LDP), driven by strong support from young voters, drawn to her iconoclastic and dynamic image, and from conservative voters reassured by her vision of national assertiveness. This popularity lays the foundation for an ambitious strategy on both the domestic and international fronts.

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The U.S. Policy Toward Taiwan Beyond Donald Trump: Mapping the American Stakeholders of U.S.-Taiwan Relations

Date de publication
17 February 2026
Accroche

Donald Trump’s return to the White House reintroduced acute uncertainty into the security commitment of the United States (U.S.) to Taiwan. Unlike President Joe Biden, who repeatedly stated the determination to defend Taiwan, President Trump refrains from commenting on the hypothetical U.S. response in the context of a cross-Strait crisis.

Marc JULIENNE Peter CHU
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Cyberdéfense
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Franz-Stefan GADY, « Japan: The Reluctant Cyberpower », Papers, Asie Visions, Ifri, 10 March 2017.
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Japan: The Reluctant Cyberpower