Did you just run into a file that is digitally signed by Open Source Developer, Pierre Bourdon? If that's the case, please read on.
You will probably see Open Source Developer, Pierre Bourdon when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

You can view additional details from the Open Source Developer, Pierre Bourdon certificate with the following steps:
Here's a screengrab of a file that has been signed by Open Source Developer, Pierre Bourdon:

As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Open Source Developer, Pierre Bourdon and that the file has not been tampered with.
If you click the View Certificate button shown in the screenshot above, you can examine 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 view the address for Open Source Developer, Pierre Bourdon, such as the street name, city and country.
Certum Code Signing CA SHA2 has issued the Open Source Developer, Pierre Bourdon certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Open Source Developer, Pierre Bourdon files I've gathered, thanks to the FreeFixer users.Unfortunately I don't have any scan result from VirusTotal available for the Open Source Developer, Pierre Bourdon files at the moment. The scan results will appear here as soon as a FreeFixer user uploads a file digitally signed by Open Source Developer, Pierre Bourdon.
| Detection Ratio | File Name |
|---|---|
| Not available | Dolphin.exe |
| Not available | dolphin-x64-5.0.exe |
The analysis is done on certificates with the following serial numbers: