Share LinkedIn Twitter Facebook Weak passwords and phishing offer far easier mechanisms for breaking into most organizations than exploiting software vulnerabilities. A study by US cybersecurity firm Praetorian based on 100 penetration tests and 450 real-world attacks discovered that stolen credentials offer the best way into enterprise networks. Ninety-seven per cent of organizations have more than one root cause of compromise. The practical upshot of the report is that there should be more focus on guarding against stolen credentials and network segmentation as defenses, rather than playing “whack-a-mole” with software vulnerabilities. Hackers most commonly use stolen credentials, often first obtained through phishing or other social engineering, to break into targeted networks and (eventually) gain access to sensitive resources, sometimes as part of a multi-stage process.