Exploring Steganography Techniques Using Flickr Images

Recently, my associate Keith McDuffee from our newly launched sister site, The Digital Photography Weblog, shared insights on an intriguing use of steganography with Flickr. For those unfamiliar, Steganography is a technique used to conceal information within other non-secret text or data.

Notable historical examples include microdots utilized by spies and the Magic Eye images from the 90s. Today, digital watermarks can be embedded in JPEG and MP3 files using the vacant spaces left by lossy compression.

Keith has been experimenting with hiding files using Flickr, employing steghide, a tool commonly found in Linux systems. However, compiling it on OS X has its challenges, and neither Fink nor DarwinPorts currently support it.


Brian is a dedicated writer for TUAW, where he shares his insights and expertise on all things Apple. With a deep love for technology, Brian covers a wide range of topics, from the latest iPhone and iPad releases to the intricacies of macOS and Apple Watch features. His clear and engaging writing style makes complex tech topics accessible to all readers. Brian’s enthusiasm for Apple products shines through in every article he writes.