Can my stolen Phone 14 being hacked and reused?

Don'ts

If the device is removed from an account after it is erased, Activation Lock will be turned off. This allows another person to turn on and use the device.

An example of my iPhone 5 is given in the GIF below. There is no "Undo" after you remove it from your account.

Beware of Phishing!

Be careful and be smart to --> Recognize and avoid phishing messages, phoney support calls ...

Note: Apple will never send you any info on Lost/Found iPhones. It (Phishing) may appear as the image given below.

Not unless you share your Apple ID and Password over a Phone or Phishing. Without your Apple ID no one can get into your device.

1. Don't share Apple IDs
2. Don't Jailbreak
3. Don't share sensitive information pertaining to your device
4. Don't give in to Phishing
5. Don't plug in your device in Airports and Public places through third-party cables and trust the device. Beware of Juice Jacking. (Especially in India)
6. Don't leave your iPhone unlocked and unattended in public places like offices, schools, malls, etc.