SECURE
What we deliver
Design and planning
We plan the right mix of links for your footprint, use case, and budget.
Hardware and installation
Routers, antennas, cabling, mounting, and clean documentation.
Configuration and security baseline
Segmentation, secure access, and policies that fit your operations.
Operations options
From handover to fully managed connectivity, including 24/7 support if needed.
Cyber security that works in real operations
How SIM Cards Are Changing Offshore Connectivity
If you’ve ever tried to stay connected while offshore, you know the struggle. Spotty coverage, sky-high satellite bills, complicated hardware setups – it doesn’t have to be that way. That’s where DRYNET SIM (M2SEA) steps in.
Our maritime SIM cards are built to keep you online at sea, whether you’re sailing near the coast or working deep in the North Sea. With 4G/5G coverage in over 50 countries and full data availability across the North Sea thanks to our partnership with Tampnet, we make sure your connection stays strong – no matter where your journey takes you.
Plans start at just €1.68 per GB*, and whether you’re a solo skipper or managing an entire fleet, there’s a setup that fits.
Internet at Sea: Why Reliable Connectivity Is No Longer Optional
Modern ships are floating offices. Whether it’s navigation systems, crew communication, engine diagnostics or simply letting your team check in with family: Connectivity is now part of daily operations. Add to that digital logs, compliance tools and live tracking, and it’s easy to see why “internet at sea” is more than a nice-to-have #Crewwellfare.
Reliable internet access also means better crew morale and safety. From sending maintenance updates to accessing weather reports in real time, being online is part of working smart offshore.
Why SIM-Based Internet at Sea Is a Game Changer
Compared to satellite internet, mobile SIM-based solutions are simpler, faster to deploy and often much cheaper. Instead of bulky hardware and fixed installation points, you just insert a SIM into a router or device and go.
SIM cards also allow you to choose data volumes that match your actual usage. No need to overpay for capacity you won’t use. Plus, if your route changes, you’re not stuck with a coverage gap – our SIMs work across Europe, worldwide, and with full 4G/5G availability in the North Sea.
How Fleet Managers and Offshore Businesses Use Mobile Internet at Sea
It’s not just for checking emails or making the occasional video call. Offshore data usage today includes ship telemetry, IoT devices, real-time monitoring, livestreaming, remote maintenance and more.
Fleet operators use DRYNET SIMs to stay connected across multiple vessels. Offshore wind service crews rely on stable mobile networks to coordinate activities. And even journalists or content creators out at sea use our SIMs to upload footage without delay.
Whether you need one SIM or fifty, we help you scale without stress.
What to Look for in a Maritime SIM Solution
Not all SIM cards are ready for the high seas. Look for:
- Wide coverage zones (ideally 50+ countries)
- Transparent pricing (no hidden fees)
- Flexible data options (Pay-as-you-go to 1TB)
- Easy usage tracking and top-up
- North Sea-specific solutions (e.g. Tampnet support)
- Contract options that match your needs
DRYNET SIM checks all these boxes. We keep it simple, scalable and transparent.
DRYNET SIM (M2SEA): Reliable 4G/5G Connectivity in 50+ Countries
From €1.68 per GB* with full North Sea coverage, DRYNET SIM is your go-to solution for internet at sea. Choose between flexible monthly plans, individual SIMs or fleet packagestailored to your operation.
Setup is quick. Support is personal. And your connection? It stays strong!
*Price may vary depending on selected plan and contract. Speed and availability can differ based on location and device.
Quick discovery call
We clarify your environment, assets, and what cannot fail.
Security review
We map the network, access paths, and biggest exposure points.
Practical improvements
Segmentation, firewall policies, secure access, and hardening.
Ongoing support
Monitoring, incident support, and regular checks to keep the setup healthy.
What you get:
- Global Coverage – Over 700 roaming partners in 200+ countries and connectivity even in remote waters.
- Seamless Switching – Automatic network selection between LTE, 5G, and satellite for the best possible connection.
- Cost-Effective Plans – Flat-rate airtime packages and uniform global pricing to avoid unexpected costs.
- Optimized Hardware – Certified modems and antennas for various budgets and operational needs.
- Scalable & Flexible – Whether for a single vessel or an entire fleet, M2SEA® grows with your demands.
Frequently asked questions
1. Do you only do cyber security for maritime?
No. Maritime is where we learned the hard lessons, but we apply the same operational security approach onshore as well.
2. We have both IT and OT. Is that a problem?
It can be, especially when they share networks and responsibilities are unclear. We help you separate and protect critical systems without breaking workflows.
3. Can you help with firewalls and segmentation?
Yes. Firewall design and segmentation are a core part of how we reduce risk and limit the blast radius of incidents.
4. What about vendor access and remote maintenance?
We set up secure remote access with clear permissions and traceability, so vendors can do their job without opening your network.
5. Do you offer monitoring and help during incidents?
Yes. We can monitor your environment and support incident handling with clear escalation and follow-through until it’s resolved.
6. How fast can we improve our baseline security?
It depends on the environment, but we usually start with quick wins first, then build a roadmap you can realistically execute.
Get started
Join our German Cyber Security Group
We have founded the German Maritime Cyber Security Group and are still looking for fellow campaigners. If you would like to join us, please contact us directly using the contact form.