The Channel Every Perimeter Tool Misses
Every DLP control that blocks uploads and USB transfers still leaves one channel wide open: a smartphone aimed at the monitor.
Every DLP control that blocks uploads, emails, or USB transfers still leaves one channel wide open: a smartphone aimed at the monitor. A contractor opens a confidential pricing sheet, snaps it, and walks out. No file was transferred. No policy fired. The data is gone anyway.
On-screen watermarking closes that gap by making the screen itself carry identifying information — text that can include the employee's username, the date, or a custom string, rendered over the working area of designated applications. A photograph of that screen is also a photograph of the watermark, which makes it far easier to trace a leak back to the person who took it.
Anexet's DLP module already covers the transfer channels a watermark cannot reach — HTTP(S), clipboard, print, external storage, network shares, and messenger files. On-screen watermarking is a complementary layer built specifically for the risk of someone photographing a screen rather than exfiltrating a file.