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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
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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.
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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
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Humans Not Invited

CAPTCHA that filters out humans and only lets programs pass
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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
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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?
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reCAPTCHA

reCAPTCHA is a free security service that protects your websites from spam and abuse.