Polish president's computer network attacked
Hackers have broken into the computer network of the Polish president's office and attempted to spread a computer virus in the form of an email attachment.
Similar incidents have taken place at several other government offices this month, including the Defence and Foreign Affairs Ministries.
The internal security agency ABW had placed strict limits on internet access at Prime Minister Donald Tusk's office after the cyber-attacks were first detected. The president's press office declined to discuss the details of the latest hacking incident, except to confirm it took place and an email with a "harmful contents" was being investigated.