Cracks often involve modifying core application files, which can lead to frequent crashes, data corruption during transfer, or "bricking" of the connected mobile device.
The following article provides an overview of FoneLab FoneTrans for iOS, a tool often sought for managing Apple device data.
Files modified to bypass activation often contain trojans, ransomware, or keyloggers. These can compromise personal data, including the very iOS backups the software is meant to manage.