Did you just run into a download or a file on your computer that is digitally signed by IO3O LLC? If that's the case, please read on.
You will probably see IO3O LLC when double-clicking to run the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can also view the IO3O LLC certificate with the following procedure:
Here is a screenshot of a file signed by IO3O LLC:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This implies that the file has been published by IO3O LLC and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for IO3O LLC, such as the street name, city and country.
COMODO Code Signing CA 2 and COMODO RSA Code Signing CA has issued the IO3O LLC certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the IO3O LLC files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 0/47 | _iu14D2N.tmp |
| 0/54 | _iu14D2N.tmp |
| 0/63 | mywifi.exe |
The detection percentage is based on the fact that I've collected 164 scan reports for the IO3O LLC files. 0 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis is based on certificates with the following serial numbers: