Hackers targeted the websites of telephone operators in the Czech Republic on Thursday after similar attacks this week affected major banks and leading media companies.
Hackers are targeting major commercial banks in the Czech Republic, bringing down their website and affecting their online banking.
Hackers attacked several top Czech news websites on Monday, overloading them with hundreds of thousands of requests per second to make them inaccessible, publishers said.
US financial institutions are being pounded with high-powered cyber attacks that some suspect are being orchestrated by Iran as payback for political sanctions.
Dozens of US banks face a "credible" threat from hackers based in Eastern Europe who are planning large-scale attacks next year, a security firm said in a report released Thursday.
Banking giant HSBC said Friday some of its websites had been hit by a "large scale" cyber attack that disrupted online services, but it assured customers that their data were not compromised.
The United States believes Iran was behind a major cyberattack on Saudi Arabia's state oil company and a Qatari gas firm, a former US official who has worked on cybersecurity issues said.
Several Swedish government websites could not be accessed Friday after they had received a warning the evening before from a group claiming to be the Anonymous collective, which supports fugitive WikiLeaks founder Julian ...
As many as 30 US banking firms are expected to be targeted in a wave of cyber attacks as part of "a large-scale orchestrated crimeware campaign," a security researcher says.
US Bank acknowledged Thursday its website was the target of "attacks" aimed at disrupting its system but that customer data and financial information were not compromised.