DFIR Diva reposted this
It’s that time of the year again. As we wrap up 2025, I have compiled a list of the best OSINT and CTF Advent calendar challenges that are sure to put your skills to the test this season! 🌟 Are you ready for a busy December? There will be rankings, prizes, a women-only CTF, and even a mysterious event brewing in the darkness... Whether you are a beginner, an expert, a teacher, or a student, this is the best time of the year to upgrade your OSINT skills and engage with the community. So, without further ado, here are my top OSINT and CTF Advent calendar challenges for December 2025: 🎄 OSINT4Fun's Advent of OSINT 2025 🗓️ Bellingcat's Open Source Challenges 🤶 STAR Labs SG Pte. Ltd.'s HEX ADVENT 2025 🖥️ TryHackMe's Advent of Cyber 2025 You can find and the details and links to these events on my blog post 👇 https://lnkd.in/eshqXjVs Enjoy, and may December 2025 be filled with learning and fun! 💝