First off, thanks to /u/HeadJanitor and /u/HippySurfer for contributing what you've done so far. It's great work and I'm hoping we can see more subs and activity in /d/Guides in the future.
First idea - How to cleanup past mistakes(where possible). There are likely many DNM users that don't start off with the best OpSec and security practices, but as they learn and research best practices move to more secure methods. It may be useful to have a guide for people who have migrated from Windows/Mac/etc. to cleanup and erase traces of their previous activity from those systems and drives. Destroying and discarding the drive may be the safest, but many people won't do that. So I'm thinking along the lines of harm reduction and not leaving evidence behind.
Second - How to find or setup a mail drop.
I'm thinking whether to answer this here or in /d/OpSec as it is good knowledge for OpSec. I do want to say, naturally, there are some wreckage that we cannot clean up and only learn from. I am going to use the cheesy example of a relationship gone wrong: divorce. I can't undo the divorce but I can make peace with it and see my role as a person in that relationship and if I have grown or if I am continuing to make the same decisions. I can use some of my worst mistakes as the things that taught me the most. The worst thing I can do is sweep them under the rug. If I go about it correctly, I learn from my mistakes and grow as a person but that means taking a look at myself when I am not the best example, a very hard thing to do: admit fault.
For Windows
https://www.lifewire.com/eraser-review-2619133
Here's other methods for Windows.
https://www.lifewire.com/free-data-destruction-software-programs-2626174
Lifewire has a huge amount of useful Windows software.
Mac has software included to do it.
Launch Disk Utility; it’s in the Utilities folder in your Applications folder. You get an option with how securely you want to erase it.
https://www.intego.com/mac-security-blog/how-to-securely-erase-data-from-your-mac-and-external-drives/
As normal the process is easiest on a Mac.
Linux has a plenty of options
sudo apt-get install secure-delete -y
The options are
srm : It is a secure rm that is used to erase files by overwriting their hard disk space and deleting them.
sfill : It is used to overwrite free space on the hard disk.
sswap : It is used to overwrite swap space.
sdmem : It is used to wipe the RAM Once secure-delete is installed.
Others are here
https://www.geeksforgeeks.org/tools-to-securely-delete-files-from-linux/#:~:text=The%20Linux%20wipe%20command%20allows,nearly%20impossible%20to%20be%20recovered
It's a great suggestion for a useful Guide.
Thanks
https://www.lifewire.com/eraser-review-2619133
Here's other methods for Windows.
https://www.lifewire.com/free-data-destruction-software-programs-2626174
Lifewire has a huge amount of useful Windows software.
Mac has software included to do it.
Launch Disk Utility; it’s in the Utilities folder in your Applications folder. You get an option with how securely you want to erase it.
https://www.intego.com/mac-security-blog/how-to-securely-erase-data-from-your-mac-and-external-drives/
As normal the process is easiest on a Mac.
Linux has a plenty of options
sudo apt-get install secure-delete -y
The options are
srm : It is a secure rm that is used to erase files by overwriting their hard disk space and deleting them.
sfill : It is used to overwrite free space on the hard disk.
sswap : It is used to overwrite swap space.
sdmem : It is used to wipe the RAM Once secure-delete is installed.
Others are here
https://www.geeksforgeeks.org/tools-to-securely-delete-files-from-linux/#:~:text=The%20Linux%20wipe%20command%20allows,nearly%20impossible%20to%20be%20recovered
It's a great suggestion for a useful Guide.
Thanks
would like a guide on how to ship discretely, how to acquire and print labels anonymously, down to the specifics