Zero-day phishing evades detection by design
Modern phishing attacks use ephemeral infrastructure, multi-channel delivery, and rapid iteration to stay ahead of traditional defenses.
Modern phishing attacks use ephemeral infrastructure, multi-channel delivery, and rapid iteration to stay ahead of traditional defenses.
Phishing infrastructure is no longer static. Attackers generate new domains, pages, and delivery methods continuously, often for a single campaign or even a single target.
Many of these attacks exist for minutes or hours, not days. By the time a domain is identified and blocked, the attacker has already moved on.
Push data shows how widespread this is. In 2025, one in three phishing payloads originated outside of email, making traditional filtering even less effective.
Traditional phishing defenses rely on known indicators: domains, URLs, signatures, and reputation. Zero-day phishing avoids all of them.
Domains are newly created or short-lived. Pages are dynamically generated. Infrastructure is rotated constantly. There is nothing stable to block.
Many campaigns also use evasion techniques like bot detection and conditional loading. The phishing page only appears when the attacker allows it, which prevents automated scanning and analysis.
In 2025, 95% of in-browser attacks detected by Push used bot protection services to actively block web scanning tools.
Even when a link is analyzed, it may appear harmless. The malicious behavior only occurs when a real user interacts with the page in a browser session.
Push detects phishing based on behavior, not static indicators. By operating inside the browser, it can observe how pages load, how users interact with them, and when the page attempts to capture credentials or session data.
This enables Push to detect phishing attacks the moment they are encountered, regardless of whether the domain has been seen before or how the link was delivered.
Because detection happens at the point of interaction, Push can stop credential harvesting and malicious activity in real time, even for attacks that exist for only a short window.
By focusing on browser behavior instead of reputation, Push helps organizations to defend against phishing campaigns that traditional tools never have time to catch.
