Stop Fraudsters in Their Tracks
Stop Fraudsters in Their Tracks
Send emails and files with unbreakable security - no more BEC or MITM threats.
Join 50+ others who signed up
Get Total Security
Protect your personal and business data today. Get started in minutes.
Get Total Security
Protect your personal and business data today. Get started in minutes.
Communicate more securly using the latest AI tech
SERUSI secures your digital life with AI-powered communications encryption. We’ve spent years refining a simple, powerful tool to serve as your source of truth, keeping your sensitive data safe from cyber threats.
Top Selling
File Transfer Fortress
Share sensitive files without fear of interception.
Top Selling
Verified Identity
Ensure every party in your communication chain is authenticated.
Top Selling
Compliance Made Easy
Meet POPIA, GDPR, and more with encrypted communication.
Easy to setup up, easy to use
Quick and seamless onboarding of all contacts & clients.
Beginner-Friendly
Serusi works like a classic email client. Making it quick and easy for new users to get started.
Fully Customizable
Add your branding for instant recipient recognition and build trust between both parties.
Easy to setup up, easy to use
Quick and seamless onboarding of all contacts & clients.
Beginner-Friendly
Serusi works like a classic email client. Making it quick and easy for new users to get started.
Fully Customizable
Add your branding for instant recipient recognition and build trust between both parties.
Easy to setup up, easy to use
Quick and seamless onboarding of all contacts & clients.
Beginner-Friendly
Serusi works like a classic email client. Making it quick and easy for new users to get started.
Fully Customizable
Add your branding for instant recipient recognition and build trust between both parties.
Frequently asked questions
Got questions? Find quick answers here! If you need more details, feel free to get in touch anytime.
What is a Man-in-the-Middle (MITM) Attack?
It’s a cyberattack where a hacker secretly intercepts communication between two parties to steal or alter data—like login credentials or financial details. Think of it as an eavesdropper hijacking your conversation.
How Do MITM Attacks Happen?
What Are the Risks of MITM Attacks?
Why Should I Care About MITM Attacks?
How Can I Stop MITM Attacks?
Frequently asked questions
Got questions? Find quick answers here! If you need more details, feel free to get in touch anytime.
What is a Man-in-the-Middle (MITM) Attack?
It’s a cyberattack where a hacker secretly intercepts communication between two parties to steal or alter data—like login credentials or financial details. Think of it as an eavesdropper hijacking your conversation.
How Do MITM Attacks Happen?
What Are the Risks of MITM Attacks?
Why Should I Care About MITM Attacks?
How Can I Stop MITM Attacks?
Frequently asked questions
Got questions? Find quick answers here! If you need more details, feel free to get in touch anytime.
What is a Man-in-the-Middle (MITM) Attack?
It’s a cyberattack where a hacker secretly intercepts communication between two parties to steal or alter data—like login credentials or financial details. Think of it as an eavesdropper hijacking your conversation.
How Do MITM Attacks Happen?
What Are the Risks of MITM Attacks?
Why Should I Care About MITM Attacks?
How Can I Stop MITM Attacks?
See What Our Happy Users Say
Fatima Ajaraan
"Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance."
Head of Global Support - TGO
Gerhard Swart
"After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again."
CEO Bello Paints ZA
Lirian Alencar
"Serusi helps us win new clients by keeping their information safe from day one—trust starts here."
Director of New Business Development
Natasha Foster
"As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients."
Partner Citi Legal SA
Natasha Foster
"As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients."
Partner Citi Legal SA
Lirian Alencar
"Serusi helps us win new clients by keeping their information safe from day one—trust starts here."
Director of New Business Development
Gerhard Swart
"After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again."
CEO Bello Paints ZA
Fatima Ajaraan
"Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance."
Head of Global Support - TGO
Fatima Ajaraan
"Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance."
Head of Global Support - TGO
Gerhard Swart
"After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again."
CEO Bello Paints ZA
Lirian Alencar
"Serusi helps us win new clients by keeping their information safe from day one—trust starts here."
Director of New Business Development
Natasha Foster
"As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients."
Partner Citi Legal SA
Fatima Ajaraan
"Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance."
Head of Global Support - TGO
Gerhard Swart
"After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again."
CEO Bello Paints ZA
Lirian Alencar
"Serusi helps us win new clients by keeping their information safe from day one—trust starts here."
Director of New Business Development
Natasha Foster
"As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients."
Partner Citi Legal SA
Natasha Foster
"As a cyber attorney, I rely on Serusi to eliminate the risks of standard email for me and my clients."
Partner Citi Legal SA
Lirian Alencar
"Serusi helps us win new clients by keeping their information safe from day one—trust starts here."
Director of New Business Development
Gerhard Swart
"After losing big to an MITM attack, Serusi ensures my payments and data are secure—never again."
CEO Bello Paints ZA
Fatima Ajaraan
"Serusi builds unmatched trust with our clients by securing their sensitive data and ensuring POPIA/GDPR compliance."
Head of Global Support - TGO
United Kingdom
£10
p/month
per user
Includes 1GB storage
Your branded emails
Unlimited messages
Get Started
© 2025 SERUSI. Protecting you from cybercrime.
© 2025 SERUSI. Protecting you from cybercrime.
© 2025 SERUSI. Protecting you from cybercrime.