What type of activity triggers an email notification using 2-step/2-factor notification?
Is an e-mail/text only sent when an actual login attempt is made? Or when a device is opened?
iPad
Whenever a transaction that requires AppleID access is carried out. Logging into this ASC, acquiring something from the App Store (including freebies), buying a computer from the Online Store, etc.
"Opening" a device, including typing in the screen lock key, does not involve using the AppleID, unless you goof up enough times for the device to become blocked,