Connect with us

Tech

How A Million Miles Of Undersea Cables Power The Internet — And Now AI

Published

8 months ago

on



Subsea fiber-optic cables are the world’s information superhighways with over 95% of the world’s international data traveling through them. This not only includes email, video calls, and streaming but also financial transactions and government communications.

Tech giants including Google, Amazon, Meta and Microsoft are heavily investing in building subsea cable infrastructure to service their AI demands and connect their growing network of data centers. Because of the importance of this infrastructure however, subsea cables have become the targets of suspected sabotage. To understand how subsea cables work, CNBC visited Alcatel Submarine Networks subsea cable manufacturing facilities in Calais, France and Greenwich, England. We also spoke to government officials and tech giants to find out why subsea cables are crucial to keeping us connected and what we can do to protect this critical infrastructure.

Chapters:
0:00 – 3:02 Introduction
3:02 – 4:45 How do subsea cables work?
4:45 – 7:30 Increasing demand
7:30 – 13:05 Manufacturing and installation
13:05 – 22:08 Cable cuts and grey-zone tactics

Produced and Shot by: Magdalena Petrova
Camera and Editing: Erin Black
Animation: Jason Reginato, Mallory Brangan
Senior Director of Video: Jeniece Pettitt
Additional Editing: Nic Golden Henry
Additional Camera: Benjamin Hall
Additional Footage: ASN, Getty Images, Google, Reuters

» Subscribe to CNBC TV: https://cnb.cx/SubscribeCNBCtelevision
» Watch CNBC on the go with CNBC+: https://www.cnbc.com/WatchCNBCPlus

About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more.

Want to level up your AI skills? Sign up for Smarter by CNBC Make It’s new online course, How To Use AI To Communicate Better At Work. Get specific prompts to optimize emails, memos and presentations for tone, context and audience. Sign up today: https://cnb.cx/47ELu8O

Connect with CNBC News Online
Get the latest news: https://www.cnbc.com/
Follow CNBC on LinkedIn: https://cnb.cx/LinkedInCNBC
Follow CNBC News on Instagram: https://cnb.cx/InstagramCNBC
Follow CNBC News on Facebook: https://cnb.cx/LikeCNBC
Follow CNBC on Threads: https://cnb.cx/threads
Follow CNBC News on X: https://cnb.cx/FollowCNBC
Follow CNBC on WhatsApp: https://cnb.cx/WhatsAppCNBC

#CNBC

How A Million Miles Of Undersea Cables Power The Internet — And Now AI

source

Related Topics:
Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Tech

Box CEO Aaron Levie: Teaming Up With Tech | Mad Money | CNBC

Published

4 hours ago

on

July 21, 2026

By



It is changing the way we work and teaming up with some of the biggest names in tech. Jim Cramer spoke to the CEO fresh off earnings.
» Subscribe to CNBC: http://cnb.cx/SubscribeCNBC
» Watch more Mad Money here: http://bit.ly/WatchMadMoney
» Read more about Box here: http://cnb.cx/1TMOPsB
“Mad Money” takes viewers inside the mind of one of Wall Street’s most respected and successful money managers. Jim Cramer is your personal guide through the confusing jungle of Wall Street investing, navigating through both opportunities and pitfalls with one goal in mind — to try to help you make money.

About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more.

Get More Mad Money!
Read the latest news: http://madmoney.cnbc.com
Watch full episodes: http://bit.ly/MadMoneyEpisodes
Follow Mad Money on Twitter: http://bit.ly/MadMoneyTwitter
Like Mad Money on Facebook: http://bit.ly/LikeMadMoney
Follow Cramer on Twitter: http://bit.ly/FollowCramer

Connect with CNBC News Online!
Visit CNBC.com: http://www.cnbc.com/
Find CNBC News on Facebook: http://cnb.cx/LikeCNBC
Follow CNBC News on Twitter: http://cnb.cx/FollowCNBC
Follow CNBC News on Google+: http://cnb.cx/PlusCNBC
Follow CNBC News on Instagram: http://cnb.cx/InstagramCNBC

Box CEO Aaron Levie: Teaming Up With Tech | Mad Money | CNBC

source

Continue Reading

Tech

Should Americans be blaming AI for mass layoffs?

Published

5 hours ago

on

July 21, 2026

By



Corporate America is getting rocked by historic rounds of white-collar layoffs, leading some to wonder: Has AI finally come for their jobs?

While the proliferation of generative and agentic artificial intelligence is playing a role, recent job cut announcements from companies like Amazon, UPS and Target are about a lot more than just the advance of new technology.

source

Continue Reading

Tech

This CEO Plans To Disrupt Apparel Industry With Wearable Spider Silk. Here’s How | CNBC

Published

6 hours ago

on

July 21, 2026

By



Dan Widmaier, Bolt Threads CEO talks about producing new, wearable and sustainable material from spider silk.
» Subscribe to CNBC: http://cnb.cx/SubscribeCNBC

About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more.

Connect with CNBC News Online
Get the latest news: http://www.cnbc.com/
Find CNBC News on Facebook: http://cnb.cx/LikeCNBC
Follow CNBC News on Twitter: http://cnb.cx/FollowCNBC
Follow CNBC News on Google+: http://cnb.cx/PlusCNBC
Follow CNBC News on Instagram: http://cnb.cx/InstagramCNBC

This CEO Plans To Disrupt Apparel Industry With Wearable Spider Silk. Here’s How

source

Continue Reading

Tech

Wal-Mart Telling Its Tech Vendors To Leave Amazon’s Cloud | The Bottom Line | CNBC

Published

7 hours ago

on

July 21, 2026

By



Wal-Mart has asked some tech vendors to stop using cloud apps that run on Amazon Web Services.
» Subscribe to CNBC: http://cnb.cx/SubscribeCNBC

About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more.

Connect with CNBC News Online
Get the latest news: http://www.cnbc.com/
Find CNBC News on Facebook: http://cnb.cx/LikeCNBC
Follow CNBC News on Twitter: http://cnb.cx/FollowCNBC
Follow CNBC News on Google+: http://cnb.cx/PlusCNBC
Follow CNBC News on Instagram: http://cnb.cx/InstagramCNBC

Wal-Mart Telling Its Tech Vendors To Leave Amazon’s Cloud | The Bottom Line | CNBC

source

Continue Reading

Tech

Apple Enters Business Market With IBM | Tech Bet | CNBC

Published

1 day ago

on

July 20, 2026

By



Apple and IBM update plan to form alliance and take over your office. iPhone and iPads will be loaded with IBM’s data and analytic capabilities.
» Subscribe to CNBC: http://cnb.cx/SubscribeCNBC

About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and Reality TV series, CNBC has you covered. Experience special sneak peeks of your favorite shows, exclusive video and more.

Connect with CNBC News Online
Get the latest news: http://www.cnbc.com
Find CNBC News on Facebook: http://cnb.cx/LikeCNBC
Follow CNBC News on Twitter: http://cnb.cx/FollowCNBC
Follow CNBC News on Google+: http://cnb.cx/PlusCNBC
Follow CNBC News on Instagram: http://cnb.cx/InstagramCNBC

Apple Enters Business Market With IBM | Tech Bet | CNBC

source

Continue Reading

Trending

On this website we use first or third-party tools that store small files (cookie) on your device. Cookies are normally used to allow the site to run properly (technical cookies), to generate navigation usage reports (statistics cookies) and to suitable advertise our services/products (profiling cookies). We can directly use technical cookies, but you have the right to choose whether or not to enable statistical and profiling cookies. Enabling these cookies, you help us to offer you a better experience.