Specifications
| Format | Challenges |
|---|---|
| Level | Beginner, Intermediate, Advanced |
| Price | Free |
| Access | Registration required |
| Activity | Active |
| Language | EN |
| Category | Pwn, Reverse, Cryptography |
A challenge board in fifteen categories, with the familiar furniture: a statement, tiered hints, a flag to submit and points for solves. The site advertises more than 300 challenges, a marketing figure rather than a count anyone maintains.
Pros & cons
Pros
- Fifteen categories let you drill one topic properly
- Free registration opens the whole board, subscription is not a factor
- Hints are tiered, so a nudge does not cost you the solve
Cons
- An account is required before you can submit anything or read a hint
- Quality swings from thin to unfairly hard, with no warning on either
- The advertised total is a headline figure, and older challenges sit unedited
Who it fits
Fits as a month of side material rather than a curriculum: the backlog is deep enough that you stop recycling your own solves. Read it as a scoreboard with hints, not a graded ladder.
Getting started
- Register, then filter by category instead of sorting by points
- Take three or four challenges from one category in a row to build the pattern
- Open a hint only after a second failed attempt, then close it again
History
Running since 2014, moved onto NorthSec infrastructure and stable since. Challenges keep arriving, and the front page still advertises more than 300 of them; treat that as marketing copy, since nobody appears to recount it. Free access covers the catalogue. Checked.
