|
|
[[!tag archived]]
|
|
|
|
|
|
[[!meta title="MAT"]]
|
|
|
|
|
|
What is MAT?
|
|
|
============
|
|
|
|
|
|
MAT (Metadata Anonymisation Toolkit) is a toolkit that anonymizes and removes
|
|
|
metadata from your files. It does this utilizing a library, a GUI application
|
|
|
and, if you prefer, a CLI application.
|
|
|
|
|
|
How does it work?
|
|
|
=================
|
|
|
|
|
|
Simply put, MAT removes all metadata from files leaving them empty.
|
|
|
Unfortunately, watermarks and steganographic tags won’t be removed but unlike
|
|
|
metadata being added by default by many utilities, watermarks are not usually
|
|
|
inadvertently added and the original author will likely be aware of their
|
|
|
existence. Basically, MAT will protect you from accidental metadata leakage,
|
|
|
but not customized metadata specifically included to track down you, the
|
|
|
author.
|
|
|
|
|
|
Why do we care?
|
|
|
===============
|
|
|
|
|
|
Because just about every file being uploaded to the internet contains metadata.
|
|
|
From Office documents to .flac audio files and beyond, they all have metadata
|
|
|
embedded, and that metadata tells the world where, when, and most crucially,
|
|
|
who uploaded it. This defeats the purpose of Tails and our ‘privacy for anyone,
|
|
|
anywhere’ mantra.
|
|
|
|
|
|
So, to ensure you stay anonymous, Tails comes with MAT included.
|
|
|
|
|
|
Currently supported files include:
|
|
|
|
|
|
- Portable Network Graphics (.png)
|
|
|
- JPEG (.jpg, .jpeg, etc)
|
|
|
- Open Documents (.odt, .odx, .ods, etc)
|
|
|
- Office OpenXml (.docx, .pptx, .xlsx, etc)
|
|
|
- Tape ARchives (.tar, .tar.bz2, etc)
|
|
|
- MPEG AUdio (.mp3, .mp2, .mp1, etc)
|
|
|
- Ogg Vorbis (.ogg, etc)
|
|
|
- Free Lossless Audio Codec (.flac)
|
|
|
- Torrent (.torrent)
|
|
|
|
|
|
MAT can be accessed via: Applications > System Tools in the Tails GUI. |