: They are often shared in "scary file" threads on forums like Reddit as a digital urban legend. How to Protect Yourself

: As with any mystery download, if the file name is a massive string of numbers or the source is untrusted, delete it immediately. The Bottom Line

The 25972695364672.rar file is a reminder that in the digital age, size is relative. A file that takes up less space than a single photo can hold enough data to fill dozens of high-end hard drives—and take your entire system down with it.

: Applications like the latest versions of WinRAR or PeaZip have built-in safeguards to detect extreme compression ratios and warn the user.

The file is a notorious "ZIP bomb" or "decompression bomb" designed to crash systems by expanding from a tiny file size to an overwhelming amount of data—in this case, exactly 24 Terabytes (TB).

A ZIP bomb (or RAR bomb) is a malicious archive file designed to crash the program or system reading it. It employs a "recursive" compression technique:

: Because the data inside is often just repetitive patterns (like billions of zeros), standard compression algorithms like WinRAR or 7-Zip can shrink it down to almost nothing.