It's your Tronlink password and not a special one for DAISY. 

In case u still know it, you can change it under account management within ur tronlink wallet. 

In case u don't have it anymore you need the seed phrase or better private key, delete wallet and restore wallet after. Then u can set a new password

 

DAISY Account Security Tips:

Remember: Be sure to save and backup your Tronlink wallet private key and mnemonic phrase, do not share with anyone. Once lost, you cannot log in and retrieve your assets! ! ! Keep it simple,in your wallet do only transaction with daisy ai Strictly and don't try others SC or Transfers from the wallet. If needed please open another wallet or account with different password for miscellaneous transaction. Don't trust anyone or a link that asks you to provide a private key or mnemonic, it's a scam!