The Chinese government is taking steps to crack down on domestic cyber criminals who steal online banking details.

The Ministry of Public Security said that it would work with Chinese search engines to ensure protection of website rankings of banks.

It follows a hack attack which led to the theft of personal details of 45m Chinese customers of various banks.

According to BBC, the Ministry stated that the department believes the recent leak of user information is a serious infringement of the rights of Internet users and threatens Internet safety. "The department strongly condemns such behavior," the Ministry added.

Besides, the Chinese official newspaper Xinhua also reported the leakage of the user IDs, passwords and email addresses of over 6m accounts registered on CSDN, a programmers site. Among the targets of the cyber attack was a popular social networking site of China named Tianya.