Dozens of Al Jazeera journalists allegedly hacked using Israeli firm's spyware

Citizen Lab researchers say cyber-attack using NSO Group software likely ordered by Saudia Arabia and UAE

• iPhones vulnerable to hacking tool for months, researchers say

Spyware sold by an Israeli private intelligence firm was allegedly used to hack the phones of dozens of Al Jazeera journalists in an unprecedented cyber-attack that is likely to have been ordered by Saudi Arabia and the United Arab Emirates, according to leading researchers.

In a stunning new report, researchers at Citizen Lab at the University of Toronto said they discovered what appears to be a major espionage campaign against one of the world's leading media organisations, which is based in Qatar and has long been a thorn in the side of many of the region's autocratic regimes.