IERAE CTF is the CTF organized by ierae, the CTF team of GMO Cybersecurity by Ierae, Inc.
GMO Cybersecurity by Ierae, Inc. is a Japanese security company with many CTF players. We have been helped by and grown with those CTF players, and now we want to help energize the community.

[Update]
We will provide seven challenges in the "Homework" category, just for fun.
These challenges are already public as they were provided in the IERAE DAYS 2023 event last year.
Each challenge is only 1pt, so it will not affect to the contest result too much.
Check out the details at https://github.com/gmo-ierae/ierae-days-ctf-2023 !

Also, we got sponsored by OffSec!

[Update]
Discord: https://discord.gg/MGZbu88UzU

10 Amazon gift cards (each worth 3000 yen) will be awarded to 1st place, 7 to 2nd place, and 5 to 3rd place. Please note, however, that they can only be used on amazon.co.jp.
We will also present one Amazon gift card to 7 persons selected by lottery among those who publish a Japanese writeup.
Moreover, 2 rights to take Offsec training courses (each worth $1649) will be awarded to the team that meets the following criteria.

- The team takes first place among teams with students residing in Japan.
- The students will be present at our event IERAE NIGHT.

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3000円分Amazonギフトカードを1位10枚、2位7枚、3位5枚贈呈。また、日本語でwriteupを記述・公開してくれた人の中から抽選で7名にも1枚贈呈。
更に、以下の条件を満たすチームにOffsec社のトレーニング・試験受講ライセンスを2つ贈呈

- 日本在住の学生の方が在籍しているチームであり、それらのチームの中で、1位を獲得する
- 表彰のため、その学生の方が弊社のイベントIERAE NIGHTに出席していただける