If the password has been lost for a Wisenet DDNS account, there is a recovery page.
https://ddns.hanwha-security.com/appl/member/findMemberInfo.do
Wisenet DDNS password recovery
If the password has been lost for a Wisenet DDNS account, there is a recovery page.
https://ddns.hanwha-security.com/appl/member/findMemberInfo.do