The first step is to verify the file integrity and confirm its type, as extensions can be spoofed.
Often, "biztonsági mentés.7z" contains another archive (e.g., a .tar , .zip , or another .7z ) creating a "Russian Doll" effect. biztonsГЎgi mentГ©s.7z
Open the files in a hex editor (like HxD) to look for "Magic Bytes" of other file types appended to the end of legitimate files. The first step is to verify the file