People now are living in an era of technology. With the rapid development of the Internet, we can get information in a much faster way than ever before. The Internet allows for an unbelievably large amount of downloads and uploads of information for individual users. However, it also brings about the hazard of personal information leakage, and it is vital to raise people's awareness of this serious problem. Firstly, if the personal information gets revealed, it might be obtained and utilized by some people who intend to engage in illegal activities, such as fraud, forgery, even kidnapping. It will cause immeasurable losses to the victims, and everyone's safety cannot be guaranteed under this circumstance. Besides, if some business giants possess a considerable amount of personal information, they might become dominant in a industry to an extent that monopoly might be formed, which obviously has a negative impact on the whole market, even the economy. Thus, personal information protection is an alarmingly significant issue that cannot be ignored.