Password spraying is an attack in which a small number of common passwords are tried across many accounts to avoid lockouts and find weak credentials. It matters because attackers can compromise accounts at scale without triggering the same signals as repeated brute-force attempts against one user.
What is Password Spraying?
Instead of guessing many passwords for one account, password spraying tries one or a few likely passwords across a large number of usernames. This helps attackers avoid account lockouts and blend into normal authentication activity more easily.
Password spraying is common against enterprise identity systems, VPN portals, email platforms, and cloud sign-in services.
Common Password Spraying Targets
Common targets include remote access services, Microsoft 365 or Google Workspace accounts, webmail portals, identity providers, and other internet-facing login systems.
Password Spraying vs. Brute Force Attack
A brute force attack repeatedly guesses many passwords for one account. Password spraying spreads a small set of guesses across many accounts to reduce detection and lockout risk.
Frequently Asked Questions
Why is password spraying effective?
Because many organizations still have some weak or reused passwords, and the attack pattern avoids the obvious noise of repeated guesses against a single user.
How can organizations reduce password spraying risk?
Strong MFA, passwordless authentication, lockout protections, risky-sign-in monitoring, and blocking legacy authentication paths all help.
