The 20th International Workshop on Security (IWSEC 2025) will be held at ACROS Fukuoka, Fukuoka, Japan between November 25--27, 2025. IWSEC is an annual international workshop, co-organized by ISEC of IEICE and CSEC of IPSJ.

Original papers on the research and development of various security topics, as well as case studies and implementation experiments, are solicited for submission to IWSEC 2025.

The previous IWSEC conferences were held in Kyoto (2006), Nara (2007), Kagawa (2008), Toyama (2009), Kobe (2010), Tokyo (2011), Fukuoka (2012), Naha (2013), Hirosaki (2014), Nara (2015), Tokyo (2016), Hiroshima (2017), Sendai (2018), Tokyo (2019), Fukui/Online (2020), Tokyo/Online (2021), Tokyo/Online (2022), Yokohama/Online (2023), and Kyoto (2024).

If you have any questions about the workshop, please contact us via e-mail. Please do NOT contact the venue (ACROS Fukuoka) directly.

Program at a Glance have been published.

Accepted Papers (Second Submission) have been announced! Congratulations to all the authors on their excellent work!🎉

Call for Posters have been announced. EasyChair submission page is open for poster submissions.

Accepted Papers (First Submission) have been announced! Congratulations to all the authors on their excellent work!🎉

EasyChair submission page is open for second submissions!

Call for Sponsors has been released.

Deadline for first paper submission has been extended.

The instructions for authors are available in Call for Papers.

EasyChair submission page is open for first deadline submissions.

IWSEC 2025 website has been launched.

IWSEC 2025 is co-located with AICompS 2025.