Five days into US and Israel’s war with Iran, the worst predictions for cyber-retaliation have yet to materialize. But Iran has built one of the world’s most active cyber operations, which means this is likely a temporary reprieve, experts warn. At the weekend, both the UK National Cyber Security Centre (NCSC) and the Canadian Centre for Cyber Security (CCCS) issued general warnings of the threat posed by Iranian cyber campaigns. The US Cybersecurity and Infrastructure Security Agency (CISA), meanwhile, has yet to update its last warning, from October. “There is almost certainly a heightened risk of indirect cyber threat for those organizations and entities who have a presence, or supply cha...