| 摘要 |
Password-protected methods, systems, and devices are disclosed in which a first password provides access to a first (limited) level, and a second password provides access to a second level, where the second level provides an operation, communication, or information not available at the first level. A system or device may include a processor (e.g., a computer, telephone, tablet, or other device). In embodiments, activities using the second level may include activities available at the first level. The existence of the second level is not detectable at the first level, nor are the operation, communication, or information not available at the first level detectable at the second level. A first-level password may be shared with family or friends while maintaining exclusivity and confidentiality for information and operations available at the second level. Further passwords, associated with further levels, may be provided. |
