Definition - What does Strong Password mean?
Techopedia explains Strong Password
Although strong passwords do help to protect systems, newer approaches are gaining popularity. One major example is biometrics. By adding biometric input, systems administrators can be more confident that they are only allowing the legitimate parties to access the system. Some IT administrators have also started adding more like channel approaches like out of band authentication, where various parts of passwords may be sent to different devices, for example, a laptop computer and a cell phone through different telecommunications networks.