Toolsley PGPigeon - Simple but powerful OpenPGP-compatible message encryption webapp.
Cisco Umbrella - Cisco Umbrella is a cloud security platform that provides the first line of defense against threats on the internet.
DeliverySlip - DeliverySlip helps simplify, secure, and expedite the burdensome elements of online collaboration...
WebTitan - WebTitan is an advanced DNS based web content filter and web security layer that blocks malware, ransomware and phishing attempts as well as providing web content control. Cloud and gateway versions available.
GPGTools - Use GPG Suite to encrypt, decrypt, sign and verify files or messages.
DNSFilter - DNSFilter offers DNS-Based Content Filtering & Threat Protection.