| 摘要 |
According to one embodiment, a first unlock code is received 420 at a user device 210 from a computer based unlock code generator. The first unlock code is received at a part of receiving a lock command for locking the user device 210. The unlock code generator is not under the control of the user. The first unlock code 212 is stored 430 at the user device 210. A second unlock code, which is provided by the user via a computer based device, is received 440 at the user device 210. The first unlock code 212 and the second unlock code are compared 450 at the user device. The user device is unlocked 460 if the first unlock code 212 is the same as the second unlock code. |
