The Yacht Technology Blog

When Ransomware Targets Your Yacht: A case study

Posted by Steve Kahlich on Mar 24, 2017 11:28:04 PM

It was a typical start to the workday for John*, the Electronic Technical Officer (ETO) for a 119m yacht supported by Great Circle Systems. One of John’s daily tasks (tracked on Triton Administrator) is to check email traffic on the vessel’s exchange server. He quickly noticed that the exchange server was not responding and would not restart. When Josh attempted to open the server, an error message appeared that said: MMC could not create the snap-in. The snap-in might not have been installed correctly. A list of Unhandled Exceptions followed, meaning the system could not find the files or assembly listed.

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Topics: yacht network design, yacht computers, vessel remote support, Ransomware, cyber attack

Cisco Vs Ruckus, What's On Your Yacht?

Posted by Ernesto Peña Jr. on Dec 18, 2015 1:57:38 PM

Now a days being able to connect to the internet is no longer a luxury, it's a necessity. Part of that is the capabilties of your network and WiFi infrastructure. In this weeks blog we'll go over the things that need to be considered when designing and planning a WiFi network aboard your vessel. What type of equipment will I need? Should I go Cisco or should I go with Ruckus. Well why not both? 


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Topics: yacht network design

Superyacht Security and the Internet of Things

Posted by Amy Levy on May 31, 2015 11:27:55 PM

Did you read our blog post Superyacht Technology and the Internet of Things—5 Challenges? The article identifies 5 key challenges to having more and more Interent-connected devices on board vessels.


In this article, I want to focus in a major Internet of Things (IoT) challenge:  SECURITY.

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Topics: yacht network design

Superyacht Technology and the Internet of Things—5 Challenges

Posted by Amy Levy on May 13, 2015 2:40:00 PM

We talk a lot about how owners, guests, captains, and crew are increasingly more connected, with each person using multiple Internet-enabled devices on board every day. In fact, we started blogging about this idea back in 2013, when we posted Vessel Internet Bandwidth: Are you Addicted?.


But we haven’t really talked about how the physical items on board superyachts--and the vessels themselves--are becoming more connected. Today, many onboard gadgets and machines--from toasters and coffee makers to diesel engines and generators--are part of the Internet of Things (IoT). Even your Fitbit falls into the IoT category as it continually gathers data about your calories, steps and sleep to provide meaningful information back to you about your health (read more about wearables in Wearables—are they the Superyacht Computers of the Future?). You can see a list of more IoT examples from


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Topics: yacht network design

Protecting your Yacht Network from Evil Twins

Posted by Andy Levy on Apr 8, 2015 10:02:00 AM

In my blog post entitled 4 Ways to Deter Superyacht Internet Hackers, I asked you to imagine this headline:

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Topics: yacht network design, yacht computers

Yacht WiFi Refit: A Big Bang for Small Bucks

Posted by Andy Levy on Apr 10, 2014 8:43:00 AM

I picked up the phone on the second ring. It was "R," owner of a 52 meter yacht and a long-time Great Circle Systems customer. He sounded anxious.


"Andy, I need your help keeping my family together," R said. "My wife and I want to take the family cruising, but the kids don't want to go because they say their Internet connections on board are slow and spotty.


Plus, my granddaughter needs to write a term paper during our cruise and can't do it without constant access to Google. Can you help me get better WiFi on board so we can have a family vacation and keep everyone happy?"


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Topics: yacht network design, yacht wifi

5 Questions When Hiring a Yacht Electro-Technical Officer (ETO)

Posted by Darren Mayhead on Dec 30, 2013 11:38:00 AM

5_eto_questions_you_should_ask_2We'’ve talked in recent blog posts about the exponential growth in computer-based systems on board yachts. These days, everything from yacht management, VSAT, A/V and telephony is computerized, often using an integrated system.


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Topics: marine system integration, yacht network design

Choosing Yacht Network Cabling

Posted by Darren Mayhead on Dec 13, 2013 10:58:00 AM

We've written a lot about the huge uptick in yacht technology over the past few years. Most of today’s vessels include complex on board computer, VSAT, audio/visual and security systems. And we can expect on board technology to only become more complex and necessary over time.


But I want to talk about a less sexy, but crucial aspect of expanding yacht technology: cabling. A vessel's cabling system is the infrastructure that supports current technology and future expansion. So it’s important to lay the right kind of cable now, while anticipating future needs. Good choices today can reduce the likelihood of a premature yacht technology refit.


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Topics: yacht network design, Vessel technology for new builds

Yacht Computers: Mac vs. PC

Posted by Amy Levy on Jun 19, 2013 11:01:00 AM

In a recent blog post, Integrated Computer Networks for Yachts: Pros and Cons, I discussed the proliferation of on board information technology.


These days, marine computers run everything from yacht management programs to audio visual systems. But as vessels add systems, more on board computers are required to access the systems and keep them running.


That leads to a question that we often get from customers: “Should I use Mac or PC computers to run my yacht’s systems? Or can I use a combination of yacht computer types, depending on the software running on them?”

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Topics: yacht network design, yacht computers

5 Tips for Selecting a Marine System Integration Specialist

Posted by Andy Levy on May 28, 2013 12:30:00 PM

Great Circle Systems has been in the yacht IT business since 2000. Since we started, the popularity of on board computer systems has grown exponentially.


As vessels become larger and more sophisticated, and as our work and our entertainment become ever more reliant on high tech wizardry, there is a natural proliferation of on board information technology.  


Designing and installing each technology in isolation can result in a hodge-podge of systems that are inefficient and difficult to maintain.



These days, many people who contact us for IT work already have an understanding that something must be done to organize their vessel’s ever-increasing technical systems. They just don’t know how to begin the process.


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Topics: marine system integration, yacht network design

JD_Crawford_head_shotDarren and the GCS team have been instrumental in the development and deployment of several carrier grade IT networks for large scale, Savant-based super-yacht projects where the technology infrastructure needed to be extremely reliable. 


The capabilities of the GCS team have proven instrumental in helping us deliver a world class technology experience to some of the most prestigious yachts in the world.


J.D. Crawford of Savant Systems


I have been working with Great Circle Systems since 2006 when they did the installation of all our networking and Internet communications equipment on our boat being built in Germany.


The equipment they recommended and installed was exactly as we required.  We have had extremely good results with all of their equipment and it has performed as they had advised.


I would highly recommend them to all fellow captains.


Captain Keith T. Moore of M/Y Lady Sheridan

CE_W_Michael_Hummel_of_MY_TVTriton Administrator has proven to be the perfect tool for us on M/Y TV, which is a 78 meter Luerssen yacht.


Triton has comprehensive essential features plus any additional features one can possibly need. It is still easy to use and has a swift support team to implement customer-specific wishes, such as individual day logs, etc.


W. Michael Hummel, Chief Engineer of M/Y TV


Captain Bruno Herregods talks about Great Circle Systems tech support. 

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