The following five acts are defined as violations of the Act on Prohibition of Unauthorized Computer Access: 1) Acts of Unauthorized Computer Access 2) Acts of Obtaining Someone Else’s Identification Code 3) Acts of Facilitating Unauthorized Computer Access 4) Acts of Wrongfully Storing Someone Else’s Identification Code 5) Acts of Illicitly Requesting the Input of Identification Codes
The number of cleared cases refers to cases that can be classified as cybercrimes. Cybercrimes are defined as crimes that use advanced information and communications networks as an indispensable means.
Data prior to 2020 come from previous reporting.
Citation formats
Number of cleared cases regarding unauthorized computer access in Japan 2015-2024
The number of cleared cases regarding violations of the Act on Prohibition of Unauthorized Computer Access in Japan amounted to *** in 2024. During that year, ***arrests related to unauthorized computer access were recorded.
Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how ÀÖ²¥´«Ã½app×îа汾 can support your business.
National Police Agency (Japan). (March 13, 2025). Number of cleared cases regarding the violation of the Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024 [Graph]. In ÀÖ²¥´«Ã½app×îа汾. Retrieved August 17, 2026, from /statistics/866407/japan-cleared-cases-unauthorized-computer-access/
National Police Agency (Japan). "Number of cleared cases regarding the violation of the Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024." Chart. March 13, 2025. ÀÖ²¥´«Ã½app×îа汾. Accessed August 17, 2026. /statistics/866407/japan-cleared-cases-unauthorized-computer-access/
National Police Agency (Japan). (2025). Number of cleared cases regarding the violation of the Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024. ÀÖ²¥´«Ã½app×îа汾. ÀÖ²¥´«Ã½app×îа汾 Inc.. Accessed: August 17, 2026. /statistics/866407/japan-cleared-cases-unauthorized-computer-access/
National Police Agency (Japan). "Number of Cleared Cases regarding The Violation of The Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024." ÀÖ²¥´«Ã½app×îа汾, ÀÖ²¥´«Ã½app×îа汾 Inc., 13 Mar 2025, /statistics/866407/japan-cleared-cases-unauthorized-computer-access/
National Police Agency (Japan), Number of cleared cases regarding the violation of the Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024 ÀÖ²¥´«Ã½app×îа汾, /statistics/866407/japan-cleared-cases-unauthorized-computer-access/ (last visited August 17, 2026)
Number of cleared cases regarding the violation of the Act on Prohibition of Unauthorized Computer Access in Japan from 2015 to 2024 [Graph], National Police Agency (Japan), March 13, 2025. [Online]. Available: /statistics/866407/japan-cleared-cases-unauthorized-computer-access/
