$
ctf42
CTFs
Challenges
Techniques
Contributors
About
Log in
Sign up
CTFs
/ UNbreakableInternational
🇷🇴
UNbreakableInternational
🇷🇴
Romania
Archived challenges by category
Reverse
23%
(10)
Crypto
19%
(8)
Pwn
16%
(7)
Misc
14%
(6)
Web
12%
(5)
Forensics
12%
(5)
OSINT
2%
(1)
Mobile
2%
(1)
Editions
Edition
Weight
Web
Pwn
Reverse
Crypto
Forensics
Misc
OSINT
Mobile
Total
2026
–
3
2
4
3
2
2
1
·
17
2025 Quals
–
2
2
3
3
1
2
·
1
14
2024
–
·
3
3
2
2
2
·
·
12