There are many programs to send files, even large ones, even so that the transmission is encrypted. However, if we want to find a really safe program that makes it impossible to intercept the files sent, unless we know where to find it, we can try Onionshare .
This particular program, free and open source, available for Windows, MacOS and Linux, allows you to share files anonymously and safely using the Tor network .
For those who do not know it, TOR is the project that guarantees anonymity and complete online privacy.
Through TOR you can also access the Deep Web of onion sites that are published online anonymously and untraceable.
Onionshare was therefore designed as a one-of-a-kind program to transfer files anonymously using the network of Onion sites .
When sharing a file with this program, Onionshare creates its own .onion website, protected with a temporary password, which is hosted on the Tor network.
In order to access this shared file it is therefore necessary to access the TOR web of the deep web, to know the URL of the site which is always made up of random characters (such as vdsfvfvef3wr.onion ) and then also to know the password.
The system is really bombproof that not even the best hacker could manage to enter it, except for one thing only: that is, the communication that must be done to who must receive the file, which is not managed by the program.
This means that the site URL and password must be communicated via another transmission channel, which in order to be secure must take place with a chat such as Signal or with an encrypted e-mail service.
The recipient of the file, to open the link where this file is shared, needs to use the TOR browser, necessary to open the onion site and download the shared file.
The Onionshare program is very easy to use, just install it and launch it on the PC where the TOR Browser is already open.
The interface supports drag and drop of files to be sent or added via button.
Access to the TOR network occurs automatically or can be configured manually using the IP address 127.0.0.1 and port 9150.
By starting the sharing, it automatically creates the site with the download buttons on the onion network.
Optionally you can also add a password to access the file from the settings menu ( File> Settings ).
Anyone who knows the URL can download that file using Tor (and knowing the password if it has been set).
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