This seems like 100% ad, and zero technical information. The only info on methods are those few lines from demo:

    Detection Results: Hidden Data Found
    LSB Encoding:     | Sequential pattern detected | 98.2%
    Appended Data:    | 2.4KB after EOF marker      | 76.5%
    DCT Manipulation: | No anomalies detected       | Clean

The fact that their demo is looking for "sequential pattern" in LSB shows pretty basic functionality. Given how easy it is to encrypt the data, only the most stupid stenography systems will leave any sort of patterns on least-significant bites of the image.

(Not to mention that for all the claims of "AI", the examples don't actually require it)