Malicious emails spend 83 hours on average in an employees inbox before they are discovered Barracuda Networks research reveals that businesses are too slow to respond to malicious emails which reach the inbox of employees On average, it takes three and half days (83 hours) from the moment a malicious email attack lands in an employees inbox, to when it is discovered by a security team or reported by end users and remediated, says new insight from Barracuda Networks, the trusted partner and leading provider for cloud-enabled security solutions. Barracuda researchers analysed threat patterns and response practices across 3,500 organisations in their most recent Threat Spotlight, this month analysing what happens after a malicious email bypasses an organisation’s security measures and lands in a user’s inbox.