Update: Attacks against DNS provider Dyn continued into Friday afternoon. Shortly before noon, the company said it began "monitoring and mitigating a DDoS attack" against its Dyn Managed DNS infrastructure. The attack may also have impacted Managed DNS advanced service "with possible delays in monitoring." 

Though Dyn is working to resolve the issue, previously affected sites continued to have service interruptions. 

Dive Brief:

• A major DDoS attack against DNS provider Dyn disrupted service for some users trying to reach Twitter, Etsy, Github, Spotify, Reddit and SoundCloud, among others, according to Hacker News. 
• Dyn Managed DNS confirmed the DDoS attack, which mainly impacted the U.S. East Coast customers. The company said customers will expect increased "latency and delayed zones," and it is working to mitigate the issue. 
• Amazon Web Services also had an issue Friday, but had already identified the issues "causing errors resolving the DNS hostnames used to access some AWS services in the US-EAST-1 Region." While AWS was working to resolve the issue, it said customers could expect failure indicating "hostname unknown" or "unknown host exception." The company did not say whether or not it was experiencing a DDoS attack. 

Dive Insight:

With such a large service provider hit with the DDoS attack, sites across the internet had service disrupted. Where do people turn when they want to gripe about something? Usually Twitter. But with Twitter down for the waking East Coast, many took to outage forums like downdetector.com to express their dissatisfaction. 

Once Twitter was back up, some used the service to let customers know they were aware of the issue and working to resolve. 

A global event is affecting an upstream DNS provider. GitHub services may be intermittently available at this time.

— GitHub Status (@githubstatus) October 21, 2016

Internet users got to experience firsthand what the type of costly cyberattack that many companies face. Even the threat of a DDoS attack can get companies to pay up, as service interruptions can prove costly for both a company's reputation and revenue stream. 

Friday's attack comes on the heels of a major attack against French hosting firm OVH, which suffered two concurrent DDoS attacks from a botnet comprised of 145,607 hacked digital video recorders and IP cameras. One of the two DDoS attacks in September peaked at 799Gbps, making it the largest DDoS attack ever reported.