https://pages.awscloud.com/GLOBAL_GC_LA_website-leads_20220420_7014z000000rdW2AAI_01.LandingPage.html
AWS Wickr: Secure Messaging and Collaboration
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https://communicator.syntellis.com/
Communicator Online Secure Messaging | Provider & Patient Portal Login
Connect and engage with your patient, clinician, staff or health clinic 24/7 with the new Communicator Secure Messaging system - formerly RelayHealth Secure...
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https://www.isode.com/
Isode - Secure Messaging Software
Aug 31, 2025 - Reliable and robust secure messaging software for deployments across military, aerospace and enterprise applications and use cases.
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https://www.mimecast.com/content/secure-messaging/
Secure Messaging Platform for Enterprises | Mimecast
See how Mimecast's secure messaging platform provides email security and encryption capabilities to manage and protect your company's email.
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https://www.rocket.chat/blog/secure-messaging-for-european-governments
Secure messaging for European governments: compliance, sovereignty, and architecture | Rocket.Chat
European governments need more than encryption. Learn what GDPR, NIS2, and digital sovereignty requirements mean for secure messaging platform selection,...
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https://www.mimecast.com/content/healthcare-secure-messaging/
Healthcare Secure Messaging | Mimecast
Mimecast Secure Messaging provides a user-friendly, cloud-based channel for ensuring healthcare secure messaging as well as HIPAA IT compliance
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https://gem.team/
Encrypted secure messaging for business | Gem Team
Keep your corporate instant messages private with Gem Team – a secure communication platform with end-to-end encryption offering text, voice, video, group...
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https://www.vipole.com/en/
VIPole - secure messaging, meetings, calls, video and sharing encrypted end-to-end
VIPole secure messenger for Windows, Mac OS, Android, iOS, Linux – encrypted chats, calls, video, meetings and file sharing.
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https://www.proofpoint.com/uk/solutions/mobile-message-security-solutions-for-service-providers
Text Protection: Secure Messaging Solutions | Proofpoint UK
Learn about Proofpoint text protection and secure SMS solutions for providers. Protect subscribers against threats and malicious actors.
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https://briarproject.org/
Secure messaging, anywhere - Briar
Secure messaging, anywhere
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https://www.securemessagingapps.com/
Secure Messaging Apps Comparison | Privacy Matters
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https://kazv.chat/
kazv - Matrix client and secure messaging app | kazv
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https://9to5mac.com/guides/imessage/
iMessage - Free secure messaging for iPhone, iPad, and Mac - 9to5Mac
iMessage is a free, secure messaging service with end-to-end encryption for iPhone, iPad, Mac, and Apple Watch. It was released in 2011.
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https://www.keepersecurity.com/keeperchat.html?tab=personal&t=b
KeeperChat: World's Most Secure Messaging App | Keeper Security
Explore KeeperChat, the world's most secure messaging app available on all devices. Protect your communications and conversations whether business or personal.
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https://www.irishtimes.com/world/europe/2026/04/28/lidl-owners-try-to-lure-german-politicians-with-middle-aisle-offer-of-a-secure-messaging-app/
Lidl owners try to lure German politicians with ‘middle-aisle offer’ of a secure messaging app –...
Apr 28, 2026 - Bundestag lobbied by owners of supermarket chain after dozens of chat groups were hacked, exposing some messages by chancellor Friedrich Merz
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https://martin.kleppmann.com/2018/03/20/security-protocols-workshop.html
From Secure Messaging to Secure Collaboration — Martin Kleppmann’s publications
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https://snikket.org/
Snikket Chat | Simple, secure and private messaging
Snikket is a simple, secure and private messaging app
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https://element.io/
Element | Secure collaboration and messaging
Element is a Matrix-based end-to-end encrypted messenger and secure collaboration app. It’s decentralised for digital sovereign self-hosting, or through a...
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https://www.gsma.com/newsroom/article/rcs-encryption-a-leap-towards-secure-and-interoperable-messaging/
RCS Encryption: A Leap Towards Secure and Interoperable Messaging - Newsroom
Mar 14, 2025 - Tom Van Pelt, Technical Director, GSMA In my last post, ‘RCS Now in iOS: a New Chapter for Mobile Messaging‘, I celebrated the integration of Rich...
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https://www.rocket.chat/blog/mattermost-alternatives
7 best Mattermost alternatives for secure business messaging | Rocket.Chat
Mattermost is great, but not perfect! Explore the top Mattermost alternatives for secure messaging and see how they compare.
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https://www.proofpoint.com/us/products/messaging-protection
Secure Collaboration and Messaging Protection Tools | Proofpoint US
Protect your messaging and collaboration platforms from phishing, malware, and ransomware attacks with Proofpoint’s secure collaboration tools and solutions.
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https://secure-channel.net/_matrix/static/
secure-channel.net - Free Matrix messaging server
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https://kryptonroom.co.uk/
KryptonRoom: Secure Crypto Chat & Anonymous Messaging Platform
KryptonRoom offers encrypted chat rooms for secure cryptocurrency discussions and private messaging. Join anonymous conversations with end-to-end encryption.
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https://www.rocket.chat/blog/military-messaging
8 key aspects of military messaging for secure communication | Rocket.Chat
Ensure secure communication within your team by selecting a military messaging solution that follows these essential security principles.
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https://www.proofpoint.com/au/solutions/mobile-message-security-solutions-for-service-providers
Mobile Messaging Security for Providers - Secure SMS | Proofpoint AU
Discover how Cloudmark, a Proofpoint company, helps mobile providers protect subscribers against a broad range of threats and malicious actors with a secure...
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https://trillian.im/
Trillian | Modern and secure instant messaging
Trillian is easy-to-use, HIPAA-compliant instant messaging for people, business, and healthcare. Send messages, share files, and much more!
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https://martin.kleppmann.com/2021/11/17/decentralized-key-agreement.html
Key Agreement for Decentralized Secure Group Messaging with Strong Security Guarantees — Martin...
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https://dismail.de/
dismail.de - secure private messaging
dismail.de - secure private services located in Germany
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https://www.similarsitesearch.com/sites/telegram/
10 Alternative Messaging Apps Like Telegram for Secure Communicat... - SimilarSiteSearch
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https://www.privacytools.io/privacy-messaging
Privacy Messaging with Secure & Encrypted Messengers in 2026
Send private messages securely and encrypted with the latest privacy messaging apps. Keep your conversations private and secure.
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https://www.trillian.im/
Trillian | Modern and secure instant messaging
Trillian is easy-to-use, HIPAA-compliant instant messaging for people, business, and healthcare. Send messages, share files, and much more!
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