Adopting an assume-breach mindset means recognizing attackers will eventually infiltrate and focusing on limiting their movement and impact. Nearly all advanced attacks exploit privileged credentials, making Privileged Access Management central to defense. Four key steps help protect critical assets: first, defend tier 0 accounts like domain admins to prevent irreversible takeovers; second, secure privileged infrastructure accounts by rotating default system credentials; third, stop lateral movement by removing local admin rights and controlling endpoints; and fourth, expand and maintain PAM to cover all privileged accounts, continuously validating controls against evolving threats.

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