My mom's Apple ID was hacked.
See -> If you think your Apple ID has been compromised
If you think your Apple ID has been compromised - Apple Support
-> scroll to Gain control of your Apple ID
- Sign in to your Apple ID account page. If you can't sign in or you receive a message that the account is locked when you try to sign in, try to reset or unlock your account.
- Change your Apple ID password and choose a strong password.
👉 Then see this Apple article: What to do after you change your Apple ID or password
What to do after you change your Apple ID or password - Apple Support
She is seriously using language learning apps such as Duolingo and Drops with many-day streaks.
She doesn't lose that.
To keep your Apple ID account secure, see the following Apple articles:
Manage and use your Apple ID
Manage and use your Apple ID – Apple Support (UK)
Recognize and avoid phishing messages, phony support calls, and other scams
Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support
Phony "tech support" / "ransomware" popups and web pages
Phony "tech support" / "ransomware" popup… - Apple Community
Identify and filter junk mail in iCloud
Identify and filter junk mail in iCloud - Apple Support
Identify legitimate emails from the App Store or iTunes Store ->
Identify legitimate emails from the App Store or iTunes Store – Apple Support (UK)
Set up iCloud Keychain
Set up iCloud Keychain - Apple Support
Create a strong password for your Apple ID, It is best if your password consists of eight or more characters and include upper and lowercase letters, and at least one number. You can also add extra characters and punctuation marks to make your password even stronger.
Never provide your password, passcode, security questions, verification codes, recovery key or any other account security details to anyone else. Apple will never ask you for this information.
See also the following Apple articles:
About the 'Trust This Computer' alert on your iPhone, iPad, or iPod touch
About the 'Trust This Computer' alert on your iPhone, iPad, or iPod touch - Apple Support
Authorize or deauthorize your computer for iTunes Store purchases
Authorize or deauthorize your computer for iTunes Store purchases - Apple Support
Get a verification code and sign in with two-factor authentication
Get a verification code and sign in with two-factor authentication - Apple Support
Check your Apple ID device list to see where you're signed in
Check your Apple ID device list to see where you're signed in - Apple Support
she makes a new ID
Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.
You can’t merge multiple Apple ID accounts.