Twitter got owned / Twitter facut praf in urma unui atac DDoS

[lego_kid]

Social networking Web site Twitter was unavailable for roughly two hours Thursday morning after being hit by a denial of service attack.

Twitter went down at about 9:30 a.m. ET. It was back up by 11:30 a.m. ET, but access to twitter.com has remained spotty since then, with frequent network timeouts.

A DoS attack occurs when hackers overload a Web site with server requests, preventing legitimate users from accessing the site. People often accomplish the attack by infecting an army of computers with viruses. When the infected computers simultaneously try to access the Web site, the servers cannot keep up.

A similar DoS attack took down blog network Gawker Media from Aug. 1 through Aug. 3, and several U.S. government agencies were hit with a denial of service attack in early July.

How these attacks happen. Computers that do not have the latest security patches are the most prone to viruses, said John Harrison, an analyst at tech security firm Symantec. Though viruses can be downloaded alongside an infected program, the most common form of attack can comes from merely visiting a compromised Web site.

According to Symantec data, there are approximately 808,000 infected domains, including those of several Fortune 100 companies. Two million computers were attacked by viruses in 2008.

Many of these viruses take the form of "botnets," which give the virus creator the ability to control the computers remotely. Some of these networks can grow to as large as 100,000 computers with very little cost to the "bad guys." In 2007, establishing botnet networks cost about $1 per bot, but now that cost is just 4 cents per bot, Harrison said.

Most of the networks use computers to send countless amounts of spam e-mail. Only rarely do network creators launch large denial-of-service attacks, however.

"When you do an attack, you are potentially showing where all of your systems are and can be more easily spotted," said Harrison. "The bad guys are careful about not doing this too much, generally operating below the radar.

Furthermore, denial of service attacks are rare, because hackers make their living on keeping the Internet open for their malicious services. Harrison said when denial of service attacks do occur, it is often when a new hacker is trying to establish credibility or rival hackers are trying to bump each other off the Internet.

Thursday's outage. Twitter allows users to post 140-character messages, and many of the site's users complained Thursday about feeling disconnected from the news of the day while the site was shut down.

"Attacks such as this are malicious efforts orchestrated to disrupt and make unavailable services such as online banks, credit card payment gateways, and in this case, Twitter for intended customers or users," Twitter Chief Executive Biz Stone told CNNMoney.com in an e-mail.

Stone said Twitter continues to defend against this attack and will continue to update its status blog. He said the company will investigate the source of the attack at a later date.

Though users can now access the site, Twitter noted on its service blog that users will experience some longer load times and slowness as the site works to "get back to 100%."

Stone said Thursday morning's attack was not related to a recent incident in which a hacker stole internal documents from Twitter, which were hosted by Google (GOOG, Fortune 500) via Google Docs.

"It's not related to Google Docs nor is it about compromised data -- it's essentially about maliciously saturating a target with so many external communications requests such that in cannot respond to legitimate requests," Stone said.

sursa : cnn.com

Ro Version :

Site-ul de microblogging Twitter nu a mai putut fi accesat de către utilizatorii săi în cursul zilei de joi, între orele 15.00 şi 16.00 (ora României), acesta fiind ţinta unui unui atac maliţios de tipul Denial of Service (DoS).

Site-ul Twitter a mai ?căzut" de-a lungul timpului din diferite motive, dar cel mai des din cauza aglomerării reţelei. Nu a fost cazul şi în dimineaţa zilei de joi, când administratorii site-ului au trebuit să facă faţa unui atac maliţios de tipul Denial of Service (DoS).

Un atac DoS reprezintă un incident de securitate a informaţiei în care o organizaţie sau un utilizator independent este privat de serviciile unei resurse pe care în mod normal o folosea fără probleme. Chiar dacă un atac DoS sau nu are ca scop sustragerea de informaţii confidenţiale, acesta poate cauza daune foarte mari. Practic hackerii au încercat să prăbuşească site-ul şi să împiedice accesul utilizatorilor.

În cel mai nou raport al său, compania G Data, cel mai premiat producător european de sisteme de securitate, avertiza că Facebook şi Twitter vor deveni ţinte predilecte ale hackerilor. ?Ne aşteptăm la abordări din ce în ce mai înşelătoare, privind reţelele sociale, potrivit lui Ralf Benzmuller, manager G Data Security Labs.

Reţeaua Twitter avea, în luna iunie, peste 45 de milioane de utilizatori în întreaga lume, conform datelor companiei de cercetare ComScore. Deoarece mulţi utilizatori accesează Twitter de pe dispozitive mobile este posibil ca numărul acestora să fie mai mare.

sursa : torrents.ro

[nu ma cunosti]

si cu ce ma incalzeste pe mine asta? nu mai postati toate prostiile fratilor #-o

[lego_kid]

si cu ce ma incalzeste pe mine asta? nu mai postati toate prostiile fratilor #-o

esti tu singurul user linkmania si nu stiu eu ? postez ce vreau , esti moderator si nu vad eu bine ? sa ma sanctioneze un moderator nu mai sari tu cu gura , a sau .. te simtit ofensat saracu de tine ca nu sti sa citesti in engleza ? :(

#nu sunt frate cu tine

[iNm]

Asta cred ca e cel mai plauzibil raspuns pt ce s-a intamplat.

[alcholic]

musamalizare sau reducere la tacere .... rusii astia .. #-o

[RealityAl3x]

dap foarte interesant stire de nota 10+ merita un oscar :bananadance2:

[Nok!a]

foarte bine ca au blocat twiteru si facebooku doar de google sa nu se lege :P

[Phyxyon]

Ofer un 'Nobàl' celor care reusesc sa inchida Hi5 , Myspace si restul site-urilor de genul asta .

[2ndAldguth]

Ofer un 'Nobàl' celor care reusesc sa inchida Hi5 , Myspace si restul site-urilor de genul asta .

Gtfo, Im watching anime on myspace o.O

[<3 eXe ;x]

Ofer o strangere de mana si o multumire pentru cel care reuseste sa inchida haifavuuuu x_X

[nu ma cunosti]

esti tu singurul user linkmania si nu stiu eu ? postez ce vreau , esti moderator si nu vad eu bine ? sa ma sanctioneze un moderator nu mai sari tu cu gura , a sau .. te simtit ofensat saracu de tine ca nu sti sa citesti in engleza ? :(

#nu sunt frate cu tine

era doar o formula de adresare, nu te mai agita ca un pepsi aa.. si stai calm, n`am cum sa fii fratele meu, e imposibil, esti mult prea retard #-o

ps : mai iesi afara din casa, ti-ar prinde bine ;)

[lego_kid]

era doar o formula de adresare, nu te mai agita ca un pepsi aa.. si stai calm, n`am cum sa fii fratele meu, e imposibil, esti mult prea retard #-o

ps : mai iesi afara din casa, ti-ar prinde bine ;)

retard ? masoarati cuvintele , ca nu mi-ai dat tu de la tine din buzunar bani de mancare sau m-ai tinut tu pe spatele tau sa ma faci retardat , plus ca nici nu ma cunosti

#nu stiu care din noi doi ar cam trebuii sa iasa din casa