Protect your phone
Lock it down
If you can get your messages on the phone without entering a password, you’re vulnerable. So make sure your voice mail service is password-protected, even when accessed from your cellphone. Setup varies among carriers. Go to your voice mail system’s main menu for instructions, or visit your carrier’s website for more details.
No dumb passwords
Resist the temptation to use the last four digits of your own phone number in your password, or something equally obvious, like “1234.’’ Pick something that criminals can’t easily guess. Don’t use the same password you use for other services, like online banking. And consider changing your password now and again.