The "Active Defense Doctrine": The illusion of firewalls

Calcalistech  |  Alon Aharon

In 2026, the traditional information security paradigm of building high walls around organizational assets has collapsed, creating an absurd asymmetry favoring attackers. The solution is an "active defense doctrine," integrating offensive cyber capabilities for adversary intelligence, reverse engineering attacker intentions, and pre-server disruption. This proactive approach employs advanced deception techniques, like concealing real information within

false data layers and decoy servers, to expose attacker behavioral signatures and tools without compromising actual data. Artificial intelligence significantly impacts this, as AI-based attack tools generate dynamic payloads, adapt in real-time, and automate exploit code, making traditional vulnerability metrics like CVSS insufficient. Organizations must transition from passive incident response to initiative, prediction, and disruption via continuous attack simulations, transforming cyber departments into strategic "value centers." This doctrine also extends to proactive threat hunting across the supply chain, identifying vulnerabilities beyond standard tests. Israeli companies, under unprecedented attack, must lead this global transition by investing in skilled personnel and AI automation to understand and disrupt hostile infrastructures.

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