Hackers Threaten Terrorist Attack During NATO Summit in Poland - Reports

The Polish authorities are investigating a cyberattack on the official website of the Catholic Church’s World Youth Day event in which a threat of terrorist attacks was made ahead of the NATO summit and a Catholic youth event in Poland, media reported Friday.

MOSCOW (Sputnik) — The NATO summit is taking place in the Polish capital on July 8-9, while the World Youth Day, an international Catholic youth event, is due to take place on July 25-31 in Krakow.

According to the Polish TVP broadcaster, the message in both Polish and Arabic languages saying "Allahu akbar! It's time for retribution. Our enemies are gathered in one place. NATO summit together with Warsaw will burn in Holy Fire" appeared on the official World Youth Day website before being deleted shortly afterward.

Polish police are said to have first learned of the cyberattack from media reports, and have since opened a probe into the incident.

According to the media, citing an expert on the Middle East, the message written in Arabic contained mistakes which suggests its author is probably not a resident of the Middle East region but is more likely to be from Germany or France. The message, however, did not appear to be written with the help of an online translator or dictionary.

On Monday, Poland introduced temporary land border controls with the Czech Republic, Germany, Lithuania, Slovakia, as well as at ports and airports, amid the NATO summit and the World Youth Day.