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

South Africa

R225

p/month

per user

Includes 1GB storage

Your branded emails

Unlimited messages

Get Started

United Kingdom

£10

p/month

per user

Includes 1GB storage

Your branded emails

Unlimited messages

Get Started

United States

$12

p/month

per user

Includes 1GB storage

Your branded emails

Unlimited messages

Get Started