In cybersecurity, there is no shortage of detection tools designed to alert organizations to potential threats. Endpoint detection tools, like virus scanners or ETDR systems, provide visibility upon what happens on the endpoint, regardless of where the endpoint is located. Network-based detection solutions (such as IDS/IPS, ATP, NTA) have provided visibility into places where endpoint cannot (and vice-versa) By 2019, by 2019, 75% of all network traffic will be encrypted, according to NSS labs.”]
Source: https://www.csoonline.com/article/3290475/are-network-based-security-detection-tools-going-dark.html