If you run a leak investigation that results in a "No Match" or "Inconclusive," don't give up. There are a few ways that you can increase the chance of finding a match.
1. Ensure that you selected the correct source file, page, or message for the investigation
In the case that you are running a report against a leaked image, EchoMark asks you to choose a page and document to run the leak investigation against. Since we compare your leaked file to the exact document and page that you selected, a minor selection error can result in a "no match."
Note: it's important that you select the exact document version that you originally used to mark and share - if that version was deleted from EchoMark at any point, it will be impossible to run a leak investigation in the future.
2. Use the highest quality leaked file that you have access to
Compression artifacts, distortions (such as extreme camera lens or perspective distortions), image noise or simply too little captured content can make it difficult for our computer vision algorithm to correctly identify a leak. Use the highest quality file that you have access to for the leak investigation.
3. Crop extraneous detail out of images
If the leaked image that you submit for investigation contains extraneous details (e.g. if it is a photo of a page that includes background or other information), then crop the image such that only the leaked information is visible in the photo. Extra detail or noise in the photo can cause our detector to misidentify the match.
4. Ensure the marked document was sufficiently watermarked
If, as part of marking the document, the leaked page was not watermarked sufficiently, it's possible that EchoMark may not be able to find a match on the basis of an image or photo. You can check this using the Mark Report.
Still not working?
If none of the steps above worked, we may still be able to help you with the investigation. Contact Support.