When you try to load an executable file or add-in, a dialog indicates that there may be a security issue.
Issue: Executable files or add-ins that are loaded into Revit can include a digital signature to guard against malware.
To protect you against potential malware threats, the Invalid Signature dialog displays when one of these conditions are met:
- The file was modified (intentionally altered or secretly tampered with) after the file was digitally signed.
- The file was corrupted in transit or when it was being digitally signed.
- The digital certificate was revoked by the publisher, indicating that files signed by this certificate may be compromised.
Solution: Do not load the file. Contact the publisher to obtain the latest edition of the file with the correct digital signature. Try to load the file again.