Notes on techniques
Root-me challenges
Root-me Steganography challenges
The art of hiding (and finding) information in a document.
EXIF Metadata
Dot and next line
Steganomobile
Twitter secret messages
TXT George and Alfred
WAV noise analysis
Poem from space
Yellow dots
EXIF Thumbnail
WAV spectral analysis
APNG just a PNG
Crypt-art
PDF embedded
PNG LSB
PNG PIT
PNG PVD