In the early days of computing, data transmission was a clunky, deliberate process. The term emerged alongside early networking frameworks and bulletin board systems (BBS) in the 1970s and 1980s. Uploading vs. Downloading
| File Type | Extension | Purpose | Risk Level | | :--- | :--- | :--- | :--- | | Executable | .exe , .dmg , .apk | Install software or apps | High (Common virus vector) | | Document | .pdf , .docx , .txt | Reports, ebooks, forms | Medium (Can host macros) | | Archive | .zip , .rar , .7z | Compressed folders | Medium (Check inside first) | | Media | .mp4 , .mp3 , .jpg | Videos, music, images | Low (But can have metadata risks) |
In the early days of computing, data transmission was a clunky, deliberate process. The term emerged alongside early networking frameworks and bulletin board systems (BBS) in the 1970s and 1980s. Uploading vs. Downloading
| File Type | Extension | Purpose | Risk Level | | :--- | :--- | :--- | :--- | | Executable | .exe , .dmg , .apk | Install software or apps | High (Common virus vector) | | Document | .pdf , .docx , .txt | Reports, ebooks, forms | Medium (Can host macros) | | Archive | .zip , .rar , .7z | Compressed folders | Medium (Check inside first) | | Media | .mp4 , .mp3 , .jpg | Videos, music, images | Low (But can have metadata risks) | download