There has been massive growth in the encryption of Internet traffic—from 50% in January 2014 to 95% as of March 20, 2021, according to Google’s Transparency Report.
This rise is a double-edged sword. It’s a good thing that organizations are using encryption to protect critical network data. However, adversaries are also using the technology. They’re increasingly encrypting their attacks, using protocols like Transport Layer Security (TLS) to hide malware in network traffic.
The sheer volume of encrypted traffic has made it difficult to gain visibility into threats.