Hackers attack Ukraine's president web site

Hackers from Russia, Kazakhstan, U.S. and other countries carried out more than 18,000 SYN-attacks on the official web site of the Ukrainian president, blocking the operation of the service.
“Nobody can be insured from such attacks," Victor Yushchenko's press office said in a statement, reports the Russian news agency Ria Novosti.

The Ukrainian president's press office also reminded that the web site of Pentagon, U.S. Department of Interior were hacked earlier this year. Hackers also blocked access to the Estonian government's web sites.