Unauthorized access
How do I find if someone accessed my iPad info,my laptop got infected by a scammer?
If your laptop has been compromised, depending upon what you have stored there, you will have the best understanding of the information that is stored - and from this determine your potential exposure to other account compromise. If you have any account credentials stored in plain text, these accounts may be at risk.
As to your AppleID, we would hope that your devices and AppleID are protected with two-factor authentication - therefore reducing risk of account takeover.
Your best approach to preserving security of any accounts that you may have exposed sign-in details is to simply and securely change the associated account Passwords. For your AppleID, these support pages should be helpful:
Change your Apple ID password – Apple Support
What to do after you change your Apple ID or password - Apple Support
Always protect your account credentials - and never store them in cleartext documents on a computer. Always use a Password or Credential management program - such as your Apple Keychain.