: The "(1)" in the filename usually indicates that a file with the same name already exists in your download folder, and your system renamed this new copy to avoid overwriting the original.
: While simply downloading a file is often safe, running it—especially if it is an executable disguised as an MP4—can infect your device with malware or arbitrary code. Download File 162 (1).mp4
: Files with generic names like this are frequently used in SMS or phishing scams. : The "(1)" in the filename usually indicates