Ireland's sailing, boating & maritime magazine

In association with ISA Logo Irish Sailing

Hi-Tech Sea Cables State 'Must Protect'

10th December 2019
LÉ Samuel Beckett departs Naval Base in Cork Harbour on patrol duties LÉ Samuel Beckett departs Naval Base in Cork Harbour on patrol duties Photo: Irish Defence Forces -facebook

A naval officer says it is high time that the State defends its critical national infrastructure by protecting the transatlantic cables that pass through Irish waters.

As the Irish Examiner reports, Lieutenant Shane Mulcahy, attached to the Naval Operations Command Centre, said Ireland needs to address the “vulnerabilities” of its undersea cable network, given how dependent our digital economy is on them. He said that around three-quarters of transatlantic cables in the northern hemisphere pass through or near Irish waters, the majority of them along a corridor less than 160km wide.

Lt Mulcahy said these cables are vulnerable to natural hazards, fishing anchors, and more hostile acts, including attack by intelligence or military agencies. He said the cables carry 97% of global data transmissions, with modern satellites accounting for just 3%.

More can be read by clicking here. 

Published in Navy
Jehan Ashmore

About The Author

Jehan Ashmore

Email The Author

Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

We've got a favour to ask

More people are reading than ever thanks to the power of the internet but we're in stormy seas because advertising revenues across the media are falling fast. Unlike many news sites, we haven’t put up a paywall because we want to keep our marine journalism open. is Ireland's only full–time marine journalism team and it takes time, money and hard work to produce our content.

So you can see why we need to ask for your help.

If everyone chipped in, we can enhance our coverage and our future would be more secure. You can help us through a small donation. Thank you.

Direct Donation to Afloat button
Who is Your Sailor Sailor of the Year 2019?
Total Votes:
First Vote:
Last Vote:

Featured Sailing School

INSS sidebutton

Featured Clubs

dbsc mainbutton
Howth Yacht Club
Kinsale Yacht Club
National Yacht Club
Royal Cork Yacht Club
Royal Irish Yacht club
Royal Saint George Yacht Club

Featured Brokers

leinster sidebutton

Featured Webcams

Featured Associations

ISA sidebutton
isora sidebutton

Featured Events 2020

Featured Chandleries

CHMarine Afloat logo
osm sidebutton
viking sidebutton

Featured Sailmakers

northsails sidebutton
uksails sidebutton

Featured Marinas

dlmarina sidebutton

Featured Blogs

W M Nixon - Sailing on Saturday
podcast sidebutton
mansfield sidebutton
BSB sidebutton
sellingboat sidebutton

Please show your support for Afloat by donating