Authenticator: Save ISP information / Cookies

Authenticators are a mild inconvenience. Obviously, the focus is on account security - but too much can become cumbersome.

Would it be possible to remember an "authenticated" account's ISP / other relevant information in order to avoid entering key -every- time they log in? EG: Player logs in using authenticator, system remembers login information (Whether a cookie-based certificate type, or simply remembering that that IP is "authorized" for that account)

If this suggestion is considered, I'd imagine it would be on the back burner for a bit. Certainly, this wouldn't be high on a priority list, but it would be a nice change.