Account takeover-based email attacks are among the toughest to detect—and the most devastating. Launched from compromised accounts of legitimate users, these attacks prey on the trust established amongst individuals.
Cybercriminals collect email account credentials or user client access via phishing attacks or purchase credentials via the dark web.
The attacker logs into the compromised account and changes account passwords or sets up a mail forwarder to establish control.
The attacker monitors account activity and waits patiently to hijack important conversations amongst high-profile individuals.
Most ATO-based phishing scams are aimed at harvesting more credentials, but attacks may involve a business email compromise scam or the spread of ransomware.
Depending on the con, credentials are captured, sensitive data is ransacked, or stolen funds are retrieved—all while making it appear that the attack is coming from a legitimate user.
Detecting unauthorized users in legitimate email accounts or user clients is critical to defending against account takeover-based attacks.
Agari understands the complex information behind the email message and analyzes expected behaviors between sender and recipient to accurately determine if a message from a previously-established email account should be trusted. With protection for both internal and outbound email, Agari provides 360° security for all advanced threats.
Convincing people into downloading malware or logging into a fake website is core to an ATO-based attack. Identity deception makes it difficult for the victim to know if the sender has malicious intent, and advanced attacks hijack the conversation at appropriate times so the recipient never suspects anything.
By understanding good email sending behaviors, Agari can spot anomalies and patterns that differ from the norm. Emails can be blocked based on the severity of divergence to ensure untrusted email never reaches the inbox.
It’s not enough to react and detect attacks from a compromised account, but to prevent and deter them before they strike. The Agari Identity Graph™ predicts attacks based on understanding the identity and relationships behind the message and on how closely a new message correlates or deviates from known good email communications.
Even though your business may not have seen a threat, Agari likely has. And because it’s at work already protecting organizations worldwide, it grows smarter and more effective each day.
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