What is Auto Blocker in Samsung Galaxy Phone Auto Blocker safeguards your device by proactively blocking potential threats and suspicious activities. *Authorized App Sources Only* To ensure the security of your device, only applications from authorized sources can be installed. *App Security Checks* All applications installed on your device will undergo rigorous security checks to identify any malicious activity. *USB Cable Command Blocking* Malicious chargers, computers, and other devices will be prevented from sending commands to your device when connected via a USB cable. *Advanced Messaging App Protection* Images suspected of containing malware will be blocked within messaging applications. *USB Cable Software Update Blocking* Installation of system software using a USB cable will be prohibited. This measure prevents unauthorized individuals with physical access to your device from installing malicious software without your knowledge.