ShieldSquare is now Radware Bot Manager

ShieldSquare is now Radware Bot Manager

What is Credential Stuffing?

Credential stuffing is a technique used by hackers, fraudsters and cybercriminals to carry out account take over attacks on banking, e-commerce, media, gaming and other websites. Account takeover (ATO) is often carried out to steal funds or cash out other forms of stored value (such as reward points and gift vouchers), or to make purchases through the compromised account. It can also be used to gain unauthorized access to confidential corporate or personal data which can be exploited in various ways.

Credential Stuffing

What is a Credential Stuffing Attack?

Credential stuffing attacks are executed by using bots to carry out mass log-in attempts to verify the validity of stolen username and password pairs bought through shady sites as well as through the Dark Web. Similar to the methods through which credit card information is stolen and resold in bulk by criminals, there is a large and growing market for valid usernames and passwords for banking, e-commerce and other websites. Apart from theft of log-in credentials, criminals can also obtain breached data from massive hacks that were executed in the past on sites such as Experian and Yahoo.

How Does Credential Stuffing Work?

Fraudsters exploit the fact that many Internet users reuse the same passwords across various sites. Using bots, they attempt large numbers of log-in attempts on a website and are often able to access accounts for which log-in credentials have been breached or reused. The difference between credential cracking and credential stuffing is that the latter does not rely on brute force or guessing of any credentials, but rather that many log-in attempts are made to verify stolen username and password pairs.

Credential Stuffing Prevention and Mitigation:

Though several ways of credential stuffing have been widely introduced in recent years, such as presenting CAPTCHAs, enforcing rules that prohibit multiple log-in attempts on user accounts within a short period, requiring a ‘time-out’ after each failed log-in attempt, or using two-factor or multiple-factor authentication (2FA or MFA), these methods are vulnerable to attackers. The only way to prevent bots that carry out credential stuffing attacks is to implement a dedicated bot management solution.

To learn more about techniques used to execute account takeover and other bot attacks, and how they can be mitigated, download 'The Ultimate Guide to Bot Management.' If you’d like to identify and quantify bot traffic on your website, and analyze vulnerabilities that can be exploited by bots, please submit a request for our complimentary Bad Bot Analyzer.

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