Why 78% of Companies Take Over 3 Weeks to Detect a Supply Chain Attack

78% of companies take more than 3 weeks to detect a supply chain attack because this type of attack enters through a channel your system inherently trusts: a legitimate software update, an audited library, or a certified vendor. Your SIEM doesn't fire because there is no visible intrusion — just an update that installed itself, as it always has. The attacker didn't force any door: you left it open yourself, for good reason.