Inspect SSL traffic without decrypting?

So uh....


"

Cisco took an innovative approach to identify threats inside encrypted traffic with its latest network security innovation –Encrypted Traffic Analytics (ETA). ETA can be enabled with Cisco’s Catalyst 9000 switches and Cisco Stealthwatch.

ETA classifies & mitigates threats inside encrypted traffic without decrypting the packets, ensuring data privacy. Encrypted Traffic Analytics technology is enabled by the Catalyst 9000 switches and Cisco Stealthwatch, which uses the power of multi-layer machine learning to detect threats in encrypted traffic without any decryption."

.....is Sophos working on something just like this or better? :) Just curious from the folks who know.