For protecting ours sensitive information, it is necessary to disable Internet Explorer password caching.
To disable password caching, follow these steps:

1. Click Start, click Run, type regedit, and then click OK.
2. Locate and then click the following registry subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings
3. On the Edit menu, click New, and then click DWORD Value.
4. Type DisablePasswordCaching to name the new registry entry, and then press ENTER.
5. Right-click DisablePasswordCaching, and then click Modify.
6. Make sure that the Hexadecimal option button is selected, type 1 in the Value data box, and then click OK.
7. Quit Registry Editor.

You can also disable password caching by using the Microsoft Internet Explorer Administration Kit (IEAK) to create an executable file, and then attaching it as an add-in component. When you use this method, Setup adds the DisablePasswordCaching entry to the registry during the installation process.

Note In some cases, you can create a custom .adm file to modify this registry key, and then import it into the IEAK Wizard.

To re-enable password caching, you can either delete the Disable Password Caching entry, or change its value to 0.

However, Internet Explorer password caching is sometimes important for users. If you forgot or lost websites passwords, for example, IE password caching will pay a vital role to recover the lost or forgotten Internet passwords , and if the IE password caching is available, Internet Explorer Password Unlocker can uncover those Internet password instantly.