You've Got Spam - A new tool that lets you spam back the spammer
StackPath - Secure Content Delivery Network, DDoS, WAF Service
RoboKiller - A paid application for iOS and Android users which blocks and pranks spam callers, such as scammers.
Avast - Avast security software products are developed for Microsoft Windows, Mac OS X, Android and Linux users by AVAST Software.
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
Flexera Software Vulnerability Manager - Flexera Software Vulnerability Manager provides solutions to continuously track, identify and remediate vulnerable applications.