Out-of-Band Communication: Your Digital Lifeboat in a Ransomware or Cyberattack

Why You Need an Out-of-Band Communication System for Cyber Resilience

In a ransomware attack or large-scale cyber incident, your email, file systems, and internal messaging tools may be completely locked down or compromised. Without a secure backup communication channel, your response can stall—costing time, money, and reputation.

That’s where out-of-band communication comes in.

Think of it as your digital lifeboat - the essential tool that keeps you afloat when everything else goes under.

What Is Out-of-Band Communication?

Out-of-band (OOB) communication refers to systems that operate independently from your primary IT infrastructure. In a cyber crisis, this means a secure, encrypted environment that remains accessible even when your main systems are offline or compromised.

Sentinel’s out-of-band platform is designed for exactly this scenario - whether it’s a ransomware attack, insider threat, system failure, or major power outage.

Why It Matters: The Ransomware Scenario

Picture this:

• Your files are encrypted
• Your teams can’t log in
• Your communication systems are down
• Your crisis response plans are unreachable

Without an alternate channel, you’re stuck. With Sentinel, you’re not. Here’s what you get with a digital out-of-band communication system like Sentinel:

• Isolated and Secure Access
• A separate, hardened platform shielded from the attack surface.
• Preloaded Crisis Documentation
• Business continuity plans, contact trees, decision checklists—all ready to use.
• Real-Time Communication Tools
• Secure chat, conferencing, and direct messaging to coordinate with key teams and external advisors.
• Mass Notification Capabilities
• Instantly notify staff, customers, partners, or media through multi-channel alerts.

A System Built for Crisis Management and Business Continuity

Sentinel is more than just a chat app - it’s a fully integrated crisis communications platform designed for resilience.

• Audit trails for all actions and decisions
• Compartmentalised access based on user roles
• Real-time visibility across departments and response teams
• Full operational continuity when primary systems fail

Whether you’re dealing with ransomware, a zero-day exploit, or a disaster recovery scenario, Sentinel ensures you’re never cut off.

“Assume You Will Be Breached”

As Marks & Spencer Chairman Archie Norman said: “The only sensible thing to do is to assume you will be breached.”

Prevention is vital - but resilience is critical. Out-of-band communication is the missing piece in many organisations’ incident response plans.

Those who understand risk - just like those who understand the sea - always prepare for the worst. Sentinel is that preparation.

Don’t Wait Until You’re Hit - Plan Now

Cyberattacks are increasing in frequency, cost, and sophistication. Ransomware response requires speed, clarity, and coordination—all of which depend on reliable, independent communication.

Sentinel is your digital life raft, it’s how smart organisations stay in control during chaos.

Ready to strengthen your incident response?

Book a demo of Sentinel’s out-of-band communication system today.