Anonymous Attacks Citi

DDoS Hit on Citi One of Many Aimed at Global Banking Websites
Anonymous Attacks Citi

Citigroup has confirmed its consumer banking sites were temporarily offline Friday because of what a bank spokesman referred to as temporary outages. Hackers with Anonymous have claimed to be behind the attacks.

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The Citigroup and Citibank websites, as well as sites run by a string of other institutions, were hit last week with denial-of-service attacks, allegedly launched by Anonymous, according to The New York Times. The same hackers are believed to be connected to last week's attack on Banco de Brasil. [See Anonymous Brazil Targets Bank Sites.]

In addition to Citi and Banco de Brasil, by Friday, sites run by HSBC Holdings, Banco BMG, Banco Bradesco, Banco Panamericano, Itau Unibanco Banco Multiplo and Febraban, Brazil's banking federation, also had been hit, allegedly by Anonymous.

Last week, the Brazilian Federation of Banks said it was pushing for a law to criminalize electronic attacks and fraud.

The operation behind the attacks waged against banks in Brazil, known as #OpWeeksPayment on Twitter, claims issues with government and capitalism were catalysts for the attacks.

Hackers affiliated with Anonymous also have claimed to be behind DDoS attacks aimed at PayPal and Sony.

About the Author

Tracy Kitten

Tracy Kitten

Former Director of Global Events Content and Executive Editor, BankInfoSecurity & CUInfoSecurity

Kitten was director of global events content and an executive editor at ISMG. A veteran journalist with more than 20 years of experience, she covered the financial sector for over 10 years. Before joining Information Security Media Group in 2010, she covered the financial self-service industry as the senior editor of ATMmarketplace, part of Networld Media. Kitten has been a regular speaker at domestic and international conferences, and was the keynote at ATMIA's U.S. and Canadian conferences in 2009. She has been quoted by, ABC News, and MSN Money.

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