LastPass stores data in various places depending on your operating system and browser.
This information is taken from this LastPass FAQ Article
Windows
- IE & Firefox
AppData%\..\LocalLow\LastPass\
or %AppData%\..\Local
Settings\Application Data\LastPass\
- Chrome
%AppData%\..\Local\Google\Chrome\User
Data\Default\databases\chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0\
- Safari
%AppData%\..\Local\Apple Computer\Safari\Databases\safari-extension_com.lastpass.lpsafariextension-n24rep3bmn_0\
OS X
- Safari & Firefox
~/Library/Application Support/LastPass/
- Firefox (non-binary
- Firefox profile directory
- Chrome
~/Application Support/Google/Chrome/Default/databases/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0/
Linux
- Firefox
- Chrome
~/.config/google-chrome/Default/databases/chrome-extension_hdokiejnpimakedhajhdlcegeplioahd_0/
Firefox on other platforms utilizes
the Firefox profile directory. You can
back these directories up and they
will contain the latest copy of your
data. Be aware that on Windows,
Protected Storage is used to
additionally encrypt your data so
you'll need to ensure that your
Windows profile is also backed up.
Your data is also backed up at
LastPass.com, and a copy is on any
other device or computer you use so
this isn't required.
Your data is also securely synced with
the LastPass servers. When you make
updates to your LastPass account,
whether in a browser plugin, a mobile
app, or the website, the updates are
reflected on the LastPass servers as
well. If your hard drive ever crashes,
or your laptop is stolen, you can
easily regain access to your accounts
by reinstalling the plugin
(https://lastpass.com/download.php)
and logging in with the same email and
master password.