Disclaimer: This information is intended for system administrators managing their own infrastructure. Default credentials pose a severe security risk if left unchanged.
If you have access to the application settings, you can define or update the KLAdmin account details: Kladmin Default Password Kaspersky
Never leave the default password in production. Always: Checking the product's documentation or user guide
If you have lost the password, the method to reset it depends on whether the device is managed by a central server or is a standalone computer. Method 1: Via Kaspersky Security Center (Managed Devices) like Kaspersky's own forums or Reddit
Remember: Your security is only as strong as your weakest credential. Change the password. Audit the logs. And treat kladmin like the master key to your digital kingdom.