When security companies analyzed the cases where passwords of various accounts such as e-mail and SNS were leaked on the Internet, it was found that simple and easy-to-guess passwords such as numbers and keyboard arrangements are frequently used. I did.
The companies surveyed are calling for caution in setting passwords.
According to the security company "Soliton Systems", an analysis of 209 cases in which information leakage was confirmed due to unauthorized access etc. on the Internet last year revealed that about 1.83 million types of passwords that are believed to be used by Japanese people are included. I did.
The most common of these was "123456", followed by "passward" and then "000000", which used a list of numbers and easy-to-guess words.
In addition, many of them used the keyboard layout as it is, such as "1qaz2wsx" and "zxcvbnm", and many of them were derived from people's names and characters such as "takahiro" and "doraemon".
Yasuyuki Hasebe, executive officer of Soliton Systems, who conducted the investigation and analysis, said, "Simple passwords have a high risk of being hijacked by cyber attacks that attempt unauthorized access by repeatedly entering various numbers and letters." He added, "Make the password as complicated as possible and do not reuse it in multiple services. It is important to change it regularly because the password that has been used for a long time may be leaked." ..