Kill Chain

Why Old-School Email Filters Can’t Stop Today’s Hacks—and What Can Email security used to be simple: a filter checks incoming messages against a database of known malware signatures and flags anything that matches. That approach—called signature-based detection—has been the backbone of consumer and enterprise email protection for decades. But it’s no longer enough. Attackers have moved on, building attacks that are custom-made for each target and designed to slip past signature checks entirely. Here’s what’s changed and what you need to know. ...

Why Old Email Filters Can’t Protect You Anymore (And What Will) You get an email from a vendor you use. It mentions the last invoice you paid, references a real employee name, and has a link that looks correct at a glance. Nothing triggers your spam filter. But the email is fake—crafted specifically for you by an AI that studied your company’s public data. ...