Account takeover (ATO)

Account takeover (ATO) is fraud in which an attacker gains control of a legitimate user account, typically using stolen or phished credentials, to steal funds, data, or further access.

How it works

ATO usually starts with credentials obtained through phishing, credential harvesting, or reuse across breached sites. The attacker logs in, changes recovery details to lock out the owner, and drains value or pivots to connected accounts. It is a common endgame for impersonation campaigns.

For your customers, an ATO on their account with you damages their trust in your brand even when the root cause was elsewhere.

How it relates to brand impersonation

Account takeover is often the outcome that brand-impersonation phishing is built to produce. Cutting off the impersonation infrastructure upstream reduces how many accounts get taken over in the first place.

How nebty helps

nebty reduces ATO risk against your customers by detecting and removing the phishing and lookalike infrastructure used to harvest their credentials. See our brand impersonation protection overview.

Brand Impersonation Protection

How ATO unfolds and how to limit it

An account takeover usually runs in stages. The attacker obtains credentials, through phishing, a harvesting page, or reuse of a password leaked elsewhere, then tests them, often quietly, and once in, changes the recovery email and phone so the real owner cannot reset their way back. From there they drain value or pivot to linked accounts. For your customers, the damage lands on your brand even when the credentials were stolen on a fake site you do not control. Limiting it works on both ends: encourage or enforce phishing-resistant authentication and watch for unusual logins, and upstream, remove the impersonation infrastructure that harvests credentials in the first place. Fewer working fakes in the wild means fewer stolen logins, which means fewer accounts to take over.

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