Much of the internet appears to be broken. And it's all because of one cyber attack.
A distributed denial of service (DDoS) attack has taken down systems run by Dyn, Inc, one of the largest providers of internet services in the world. And as a result it seems to be causing problems for a variety of websites – including Reddit, Spotify and Twitter.
Dyn runs domain name servers or DNS. They work as a phone book or map to the internet, making sure that when someone writes an address into their computer or phone, it can be directed to the right place and show the right information.
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Sharing the full story, not just the headlines
Gadgets and tech news in pictures
Show all 25
Gadgets and tech news in pictures
1/25 Google turns 21
Google celebrates its 21st birthday on September 27. The The search engine was founded in September 1998 by two PhD students, Larry Page and Sergey Brin, in their dormitories at California’s Stanford University. Page and Brin chose the name google as it recalled the mathematic term 'googol', meaning 10 raised to the power of 100
Google
2/25 Gun-toting humanoid robot sent into space
Russia has launched a humanoid robot into space on a rocket bound for the International Space Station (ISS). The robot Fedor will spend 10 days aboard the ISS practising skills such as using tools to fix issues onboard. Russia's deputy prime minister Dmitry Rogozin has previously shared videos of Fedor handling and shooting guns at a firing range with deadly accuracy.
Dmitry Rogozin/Twitter
3/25 Hexa drone lifts off
Chief engineer of LIFT aircraft Balazs Kerulo demonstrates the company's "Hexa" personal drone craft in Lago Vista, Texas on June 3 2019
Reuters
4/25 Project Scarlett to succeed Xbox One
Microsoft announced Project Scarlett, the successor to the Xbox One, at E3 2019. The company said that the new console will be 4 times as powerful as the Xbox One and is slated for a release date of Christmas 2020
Getty
5/25 First new iPod in four years
Apple has announced the new iPod Touch, the first new iPod in four years. The device will have the option of adding more storage, up to 256GB
Apple
6/25 Folding phone may flop
Samsung will cancel orders of its Galaxy Fold phone at the end of May if the phone is not then ready for sale. The $2000 folding phone has been found to break easily with review copies being recalled after backlash
PA
7/25 Charging mat non-starter
Apple has cancelled its AirPower wireless charging mat, which was slated as a way to charge numerous apple products at once
AFP/Getty
8/25 "Super league" India shoots down satellite
India has claimed status as part of a "super league" of nations after shooting down a live satellite in a test of new missile technology
EPA
9/25 5G incoming
5G wireless internet is expected to launch in 2019, with the potential to reach speeds of 50mb/s
Getty
10/25 Uber halts driverless testing after death
Uber has halted testing of driverless vehicles after a woman was killed by one of their cars in Tempe, Arizona. March 19 2018
Getty
11/25
A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore
Getty
12/25
A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore
Getty
13/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
14/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
15/25
The giant human-like robot bears a striking resemblance to the military robots starring in the movie 'Avatar' and is claimed as a world first by its creators from a South Korean robotic company
Jung Yeon-Je/AFP/Getty
16/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
17/25
Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi
Rex
18/25
Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi and Kaptain Rock playing one string light saber guitar perform jam session
Rex
19/25
A test line of a new energy suspension railway resembling the giant panda is seen in Chengdu, Sichuan Province, China
Reuters
20/25
A test line of a new energy suspension railway, resembling a giant panda, is seen in Chengdu, Sichuan Province, China
Reuters
21/25
A concept car by Trumpchi from GAC Group is shown at the International Automobile Exhibition in Guangzhou, China
Rex
22/25
A Mirai fuel cell vehicle by Toyota is displayed at the International Automobile Exhibition in Guangzhou, China
Reuters
23/25
A visitor tries a Nissan VR experience at the International Automobile Exhibition in Guangzhou, China
Reuters
24/25
A man looks at an exhibit entitled 'Mimus' a giant industrial robot which has been reprogrammed to interact with humans during a photocall at the new Design Museum in South Kensington, London
Getty
25/25
A new Israeli Da-Vinci unmanned aerial vehicle manufactured by Elbit Systems is displayed during the 4th International conference on Home Land Security and Cyber in the Israeli coastal city of Tel Aviv
Getty
1/25 Google turns 21
Google celebrates its 21st birthday on September 27. The The search engine was founded in September 1998 by two PhD students, Larry Page and Sergey Brin, in their dormitories at California’s Stanford University. Page and Brin chose the name google as it recalled the mathematic term 'googol', meaning 10 raised to the power of 100
Google
2/25 Gun-toting humanoid robot sent into space
Russia has launched a humanoid robot into space on a rocket bound for the International Space Station (ISS). The robot Fedor will spend 10 days aboard the ISS practising skills such as using tools to fix issues onboard. Russia's deputy prime minister Dmitry Rogozin has previously shared videos of Fedor handling and shooting guns at a firing range with deadly accuracy.
Dmitry Rogozin/Twitter
3/25 Hexa drone lifts off
Chief engineer of LIFT aircraft Balazs Kerulo demonstrates the company's "Hexa" personal drone craft in Lago Vista, Texas on June 3 2019
Reuters
4/25 Project Scarlett to succeed Xbox One
Microsoft announced Project Scarlett, the successor to the Xbox One, at E3 2019. The company said that the new console will be 4 times as powerful as the Xbox One and is slated for a release date of Christmas 2020
Getty
5/25 First new iPod in four years
Apple has announced the new iPod Touch, the first new iPod in four years. The device will have the option of adding more storage, up to 256GB
Apple
6/25 Folding phone may flop
Samsung will cancel orders of its Galaxy Fold phone at the end of May if the phone is not then ready for sale. The $2000 folding phone has been found to break easily with review copies being recalled after backlash
PA
7/25 Charging mat non-starter
Apple has cancelled its AirPower wireless charging mat, which was slated as a way to charge numerous apple products at once
AFP/Getty
8/25 "Super league" India shoots down satellite
India has claimed status as part of a "super league" of nations after shooting down a live satellite in a test of new missile technology
EPA
9/25 5G incoming
5G wireless internet is expected to launch in 2019, with the potential to reach speeds of 50mb/s
Getty
10/25 Uber halts driverless testing after death
Uber has halted testing of driverless vehicles after a woman was killed by one of their cars in Tempe, Arizona. March 19 2018
Getty
11/25
A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore
Getty
12/25
A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore
Getty
13/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
14/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
15/25
The giant human-like robot bears a striking resemblance to the military robots starring in the movie 'Avatar' and is claimed as a world first by its creators from a South Korean robotic company
Jung Yeon-Je/AFP/Getty
16/25
Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea
Jung Yeon-Je/AFP/Getty
17/25
Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi
Rex
18/25
Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi and Kaptain Rock playing one string light saber guitar perform jam session
Rex
19/25
A test line of a new energy suspension railway resembling the giant panda is seen in Chengdu, Sichuan Province, China
Reuters
20/25
A test line of a new energy suspension railway, resembling a giant panda, is seen in Chengdu, Sichuan Province, China
Reuters
21/25
A concept car by Trumpchi from GAC Group is shown at the International Automobile Exhibition in Guangzhou, China
Rex
22/25
A Mirai fuel cell vehicle by Toyota is displayed at the International Automobile Exhibition in Guangzhou, China
Reuters
23/25
A visitor tries a Nissan VR experience at the International Automobile Exhibition in Guangzhou, China
Reuters
24/25
A man looks at an exhibit entitled 'Mimus' a giant industrial robot which has been reprogrammed to interact with humans during a photocall at the new Design Museum in South Kensington, London
Getty
25/25
A new Israeli Da-Vinci unmanned aerial vehicle manufactured by Elbit Systems is displayed during the 4th International conference on Home Land Security and Cyber in the Israeli coastal city of Tel Aviv
Getty
As such, an attack on a DNS company can wreak havoc across large parts of the internet, stopping websites from loading. That is usually done through a DDoS attack, where the servers are hit with so many requests that they stop responding.
The attack is mainly hitting the East part of the US, according to Dyn, Inc. But because it is hitting the tools used to make websites load, it can cause problems across the world on various sites.
As well as the problem being generalised, some people in the same area might find that other people are able to get online, or that other devices are able to. That may be because of the way that DNS information is cached by some networks, meaning that it can still be accessed even if the servers themselves are down.
An update on Dyn's website read: “Starting at 11:10 UTC on October 21th-Friday 2016 we began monitoring and mitigating a DDoS attack against our Dyn Managed DNS infrastructure. Some customers may experience increased DNS query latency and delayed zone propagation during this time. Updates will be posted as information becomes available.”
It said that its engineers were working to mitigate the issue, and that it would post more information when it was clear what was going on.
Social media is an increasingly important battle ground in elections - and home to many questionable claims pumped out by all sides. If social media sites won't investigate the truth of divisive advertising, we will. Please send any political Facebook advertising you receive to digitaldemocracy@independent.co.uk, and we will catalogue and investigate it. Read more here.
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