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 Hacker attacks silence Twitter, slow Facebook

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PostSubyek: Hacker attacks silence Twitter, slow Facebook   Fri Aug 07, 2009 6:20 pm

Twitter and Facebook said they suffered service problems from hacker
attacks on Thursday, raising speculation of a coordinated campaign
against the world's most popular online social networks.

Twitter, the popular micro-blogging service, was knocked down by a
malicious attack that prevented people from accessing its website for
several hours on Thursday.

Facebook members saw delays logging in and posting to their online
profiles, which the social networking site said was related to an
"apparent distributed denial of service attack."

Facebook was working with Twitter and Internet search company Google Inc to investigate further, said a person familiar with Facebook but who was not authorized to speak to the press.

Speculation swirled on the Internet that other social networking
sites had also come under attack, after relatively lesser-known site
LiveJournal said it too had been targeted by hackers on Thursday. But
those rumors could not be confirmed.

The incidents follow a wave of similar cyber attacks in July that
disrupted access to several high-profile U.S. and South Korean
websites, including the White House site. South Korea's spy agency said
at the time that North Korea might have been behind the attacks.

Twitter co-founder Biz Stone said on Twitter's blog that the site
was the victim of a denial-of-service attack, a technique in which
hackers overwhelm a website's servers with communications requests.

"We are defending against this attack now and will continue to
update our status blog as we continue to defend and later investigate,"
Stone wrote.

A separate Twitter status Web page said later on Thursday that the
site was back up, but that Twitter was continuing to recover from the
attack.

Google said in an emailed statement that it was in contact with some
non-Google sites that were impacted by Thursday's attacks to help
investigate.

"Google systems prevented substantive impact to our services," the statement said.


ANTISOCIAL ATTACKS


Motives for denial-of-service attacks range from political to
rabble-rousing to extortion, with criminal groups increasingly
threatening to hobble popular websites that don't pay demanded fees,
according to security experts.

Twitter's newfound fame makes it an easy target for hackers, said
Steve Gibson, the president of Internet security research firm Gibson
Research Corp.

Twitter, which lets users publish short, 140-character messages to
groups of online "followers," is one of the fastest-growing Internet
companies.

The number of worldwide unique visitors to the Twitter website
reached 44.5 million in June, up 15-fold year-over- year, according to
comScore data.

Security experts said a single group could have been behind the
problems on Twitter, Facebook and the other sites as hackers evolve
their ability to attack multiple sites at once.

"History would tell us that it's probably the same attacker or group
of attackers that is launching both attacks," said Kevin Prince, the
chief technology officer of security services provider Perimeter
eSecurity.

A representative for blogging website LiveJournal said the site was
also affected by a cyber attack for about one hour on Thursday morning.

While the company "can't be 100 percent sure that it was the same
attacks as on Twitter, Facebook, et al, it would be a huge coincidence
if they aren't tied to one another," said LiveJournal representative
Tim Smith.

A denial-of-service attack on Twitter would be particularly
effective since "it's going to be very visible to a huge population of
people who have now, to some degree, become dependent on this
next-generation, real-time service," said Gibson.

Some Twitter users appeared to be taking the incident in stride.

"It's just an annoyance. Remember Twitter was down in 2007 and 2008
all the time," said Robert Scobble, a commentator on the technology
industry who boasts 93,000 "followers" on Twitter, referring to a
period when Twitter's rapid traffic growth occasionally led to several
service disruptions.

For lawyer Zabi Nowald, it was just another day -- Twitter or no
Twitter -- as he headed to work in downtown Los Angeles with a laptop
in one hand and a Blackberry in the other.

"None of my friends do Twitter; none of my employers do," said
Nowald, 27. "It affects my life zero. I lost something I never had."

Semoga bermanfaat deh :p

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anoname
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PostSubyek: Re: Hacker attacks silence Twitter, slow Facebook   Tue Aug 18, 2009 7:53 am

Hati -hati sob ....... Very Happy bwt yg punya facebook
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syah
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PostSubyek: Re: Hacker attacks silence Twitter, slow Facebook   Thu Aug 20, 2009 7:07 pm

ga perlu paranoid juga....nyantai aja.
ga ada facebook ga berakhir dunia, aku aja ada 7 account facebook. ga penting banget soalnya cuma buat praktek ini itu.

dan ga ada system yang aman 100%...bullshit kalo ada yg ngomong system paling aman dimuka bumi. yg menjadi masalah gimana kita menggunakan system itu dengan baik dan terukur.



:kesal:
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PostSubyek: Re: Hacker attacks silence Twitter, slow Facebook   Today at 10:53 am

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