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lgomezma
This is the tool that Elliot uses in the last episode of Mr. Robot, right?
ragaluk
As soon as I saw the caption, I rushed to the comments to type just this. Thunder stolen. :D
lgomezma
hahaha It actually took me a while to realise :D
lgomezma
They also show Protonmail btw, really nice service :)
violentvinyl
The burning questions is, can audiophiles tell the difference?
tomtoise
I remember using something slightly similar (Though more rudimentary) in my final year Computer Forensics degree. The task was to leave a 'breadcrumb trail' of evidence for another group leading to files that would condemn us as child sex traffickers. Our group hid the password to a certain archive file in a single track of a Cannibal Corpse album. I think the track was 'Festering in the Crypt'. When the track was viewed as a wave graph, the password was clearly visible. Much fun was had leaving subtle hints to our counter group that they had to listen to the whole album backwards to glean the password. I don't think they ever solved it. Cannibal Corpse was selected because any distortion from changing the wavelengths to hide the password would be very hard to pick up.
danbruc
If I didn't miss something this just replaces - depending on the quality setting - the least significant 2, 4 or 8 bits of every 16 bit sample with the data to be hidden. This is trivial to detect and will not survive any lossy compression.
leni536
I'm not sure if it's effective steganography. It says that you can encrypt hidden files. If I use this on a file which contains an encrypted hidden file, will it detect that there is a file without giving a key? If it does it's not proper steganography.

I used steghide once or twice, it claims that the existence of the datafile cannot be proven, can hide in image and audio files. It doesn't survive basic lossy compression cycles, but can hide in jpeg files.