Hotmark
Create honeypots & protect your e-mail lists
21 Alternatives To Hotmark
Airmail for iOS
One of the best Mac email clients, now on iPhone
Confident Captcha
Confident Technologies provides free CAPTCHA security software called Confident CAPTCHA, a picture…
Crypteron Community Edition
Encryption and key management for C# and Java
Encrypto
Encrypto lets you encrypt files before sending them to friends or coworkers.
FB Unseen
Blocks the ”seen” feature of the Facebook messenger.
FastMail
Email, calendars, and contacts to highest standards of security, privacy and reliability.
Hop
Spike makes working easier and more efficient. Saving you and your team time, sanity, and a lot of headaches.
Hop Encrypted Email
Completely private chat email, w/ encrypted email messaging
Humans Not Invited
CAPTCHA that filters out humans and only lets programs pass
Image Blur
Hide your sensitive data with a click
Just For Fun
Showcasing creative side projects
Keybase for Chrome
A secure chat button for every profile
Metal Captcha
A captcha form for metal fans
NoMoreCaptchas
What Does NoMoreCaptchas Do?
Polymail Teams
Email for team outreach and collaboration
Spamty
Spamty is a web service to encrypt an email address and share it on the internet.
Stealthy
Messaging with blockchain identity and user controlled data
Syncrypto
Simple and accessible file encryption.
Virtru
Virtru is your data privacy force field, wrapping and protecting emails and files wherever they’re shared. Easy-to-use data security software for business. People also askIs Virtru Hipaa compliant?
reCAPTCHA
reCAPTCHA is a free security service that protects your websites from spam and abuse.