As with all password managers you can get it to store your user names, passwords, credit card information, and even two-factor authentication keys (for 2-step verification). With those keys there is a special treat, you can get 6-digit code directly out of the program.
On database level it is compatible with well known and renowned Password Safe and thus security should not be an issue. In a pinch you can even use one of many Password Safe variants to open a database.
To install Linux version on Debian-based system (e.g. Ubuntu), use these commands:
wget -O- http://packages.medo64.com/keys/medo64.asc \
| sudo tee /etc/apt/trusted.gpg.d/medo64.asc
echo "deb http://packages.medo64.com/deb stable main" \
| sudo tee /etc/apt/sources.list.d/medo64.list
sudo apt-get update
sudo apt-get install bimil
Or you can download the Debian package