Chinese DDoS knocks out Optus?

Chinese DDoS knocks out Optus?

Summary: A two-hour Optus outage yesterday was caused by a distributed denial-of-service (DDoS) attack, and while claimed customers say it was launched from China, Optus says it doesn't know the origin of the attack.

SHARE:
TOPICS: Telcos, Outage, Optus
4

update A two-hour Optus outage yesterday was caused by a distributed denial-of-service (DDoS) attack, and while claimed customers say it was launched from China, Optus says it doesn't know the origin of the attack.

"Internet outage has been resolved. It was caused due to DDoS attack originating from China. Extended network and upstream provider have filtered traffic to restore traffic flow," a user on broadband forum Whirlpool claimed to have been told by Optus subsidiary Uecomm this afternoon.

Optus told ZDNet.com.au that it experienced a "technical issue" with one of its international data links connecting it to the United States.

Customers on both Optus' Evolve network and its Uecomm service had earlier today complained of slow links. The company said customers would have experienced sluggish email or web pages that timed out.

"The fault occurred at 1:10pm and was resolved at 3:25 this afternoon. Optus apologises to customers for any inconvenience," Optus said.

A spokesperson confirmed to ZDNet.com.au that the outage was caused by a DDoS, but that it didn't know whether it was from China.

Topics: Telcos, Outage, Optus

Liam Tung

About Liam Tung

Liam Tung is an Australian business technology journalist living a few too many Swedish miles north of Stockholm for his liking. He gained a bachelors degree in economics and arts (cultural studies) at Sydney's Macquarie University, but hacked (without Norse or malicious code for that matter) his way into a career as an enterprise tech, security and telecommunications journalist with ZDNet Australia. These days Liam is a full time freelance technology journalist who writes for several publications.

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Talkback

4 comments
Log in or register to join the discussion
  • Another politically correct statement from Optus. Wouldn't want to offend the draconian regime who filters their Internet service, would we!! Just like Herr Conroy plans for Australian users.
    When do these dingalings ever do more than offer spin answers. They must think were all fools!
    Huntsman.ks
  • Is DDoS the new scapegoat for all internet technical failures?

    Last Monday morning my Access Provider was offline so I could not access anything. Attempts to phone for tech support just to verify if there was a problem were impossible.

    I contacted someone in Sydney who was able to access the Provider's Home page, but could not log in using my details.

    If I ring them today and ask about it, will I be told it was a DDoS?
    Treknology
  • Keith, DDoS are by definition a DOS style attack that comes from multiple sources, quite possibly from home user machines that have been compromised (ie. zombie machines). All generate traffic to their own link capacity at the same time, maybe not much individually but enough combined to overload the victims system. The problem in turn though is that from the victims perspective the attack is coming from multiple sources (and often IP spoofed sources), so getting a confirmation on where the attack actually originated from isn't as simple as saying "it all came from there". Stating the origin can't be confirmed isn't a political statement, it's because at that stage it can't be confirmed.
    Tezmyster
  • Humm, Sounds like an Optus employee?
    I know what a DDOS attack is. I didn't need a lesson in TCP/IP or coding protocols. The response from Optus is still SPIN! They like Telstra are master's of the art. They love obfuscation so they don't have to shoulder the responsibility, which is pretty much the norm for all telcos.
    Huntsman.ks