In this video I demonstrate how to modify a cheap USB Flash drive into a password protected USB data storage
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1. First, buy a cheap USB flash drive. The USB drive must have a Chipsbank CBM2199E controller (https://www.aliexpress.com/item/4000712595156.html);
2. Using "ChipGenius" you can check USB Flash controller type;
3. Download the Chipsbank APTool (https://www.usbdev.ru/files/chipsbank/cbm2099aptool/). 
Some antivirus programs detect these tools as viruses.
I am not responsible for the reliability of these programs and possible damage to your system.
I recommend doing this in a virtual machine (https://www.virtualbox.org/);
4. In the program, click on settings and enter the password;
5. Do not disconnect the USB device during the process;
6. When the program is finished, reinsert the USB drive;
7. Now let's check the password protected USB drive;
8. After connecting the USB drive, we see only a 2MB partition. Any user data is invisible;
9. After entering the right password, the protected user partition is opened;
10. Let's put some files and try to secure them;
11. Now unplug the USB drive and plugin it again to check if the uploaded file is secured;
12. As you can see, you can open the user partition only after entering the correct password;
13. I hope it was interesting. Thank you for watching.
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Music:
"Ikson - Anywhere" is under a YouTube Free license. 
Music promoted by BreakingCopyright: https://bit.ly/anywhere-song