Yes, if you use the exact version v1.3.1 by Mahmoud Salah from a trusted source.
Because the tool uses techniques to communicate directly with Samsung servers (bypassing standard browser methods). Some AVs classify this as “potentially unwanted.” Add an exception. samfirm tool v131 by mahmoud salah link
A huge thank you to Mahmoud Salah and the GSM Egypt team for providing this tool free of charge to the technician community. Yes, if you use the exact version v1