What Is Credential Stuffing and How to Prevent It?

Login credentials can compromise your security on multiple platforms
Find out what is credential stuffing in cyber security and how it can compromise your online accounts to protect sensitive information.

With the rise of convenient online communication, shopping, and banking, the need for digital security measures has never been higher. You run the danger of having your sensitive information stolen or compromised, making security all the more critical. Credential stuffing heightens individual and business security issues in already volatile and unpredictable environments.

What is Credential Stuffing?

The term “credential stuffing” comprises gaining access to another system using stolen login credentials or information. Credential stuffing is gaining unauthorized access to user accounts on various sites using stolen credentials. The frequency and severity of data breaches are on the rise. Thus, organizations must understand what is credential stuffing in cyber security.

Credential stuffing involves the hacker trying to sign up for many websites using stolen login credentials. The premise that most users would reuse their login credentials across different platforms is the basis for this strategy. Software applications that aim to increase efficiency and scalability automate a common approach that hackers use to hijack many accounts using known usernames and passwords.

What is Credential Stuffing in Cyber Security?

Credential stuffing is becoming an increasingly serious problem in cybersecurity because it exploits a common weakness—reusing login credentials. Instead of using unique credentials for each platform and service, most individuals memorize their login and password and use them everywhere. Credential stuffing exploits this technique by using stolen credentials from one platform to access another.

Credential stuffing attacks employ hundreds or even millions of credentials taken from a specific database to gain access to other platforms and steal information or resources. For example, someone may get access to people’s banking applications or platforms by stealing their credentials from a social networking site’s database. Attackers also employ credential stuffing to get businesses to pay a ransom to keep sensitive information from falling into the wrong hands.

What is the Difference Between Credential Stuffing and Other Cyber Attacks

It is crucial to understand what is a credential stuffing attack to differentiate it from other types of cyber attacks. Credential stuffing attacks are distinguished by using preexisting login details rather than brute force attacks, which employ an iterative trial-and-error method to crack passwords. By utilizing compromised data strategically, credential stuffing distinguishes itself from other forms of attack that require guessing to log in to particular accounts.

By utilizing preexisting credentials, credential stuffing circumvents the necessity for trial-and-error methods characteristic of brute-force attacks. Capitalizing on the pervasive problem of password reuse across services significantly enhances the attack’s efficacy. The sheer volume of credentials from various data breaches available on the internet and automation capabilities are the primary elements of the success of credential stuffing.

How Does Credential Stuffing Work?

Credential stuffing works because most people use similar credentials and login details on multiple platforms and accounts. It starts with hackers acquiring compromised data or credentials from a particular website or app leaked due to a previous data breach, typically sold on the internet on a dark web marketplace.

Subsequently, hackers use the leaked data with automated software programmed to simulate human login attempts to rigorously enter these credentials into the login forms of other websites or apps. The hackers execute the attacks efficiently using sophisticated software that circumvents standard security measures such as CAPTCHA, enabling mass logins in a limited time. The software attempts to log in to a particular website using thousands of credential combinations.

What are Some Examples of Credential Stuffing?

Several prominent disclosures have highlighted the serious nature of credential stuffing. For example, intrusions at Yahoo and LinkedIn resulted in the theft of hundreds of millions of user credentials, which were later exploited to attempt account access across several other services. These examples highlight the interdependence of various online platforms and the potentially disastrous consequences of reusing credentials.

The Yahoo intrusion compromised the company’s three billion accounts, underscoring the extensive magnitude and potential consequences of credential stuffing. Subsequent investigations revealed that a considerable proportion of the compromised accounts were accessed utilizing credentials acquired from previous intrusions of other platforms, emphasizing the interrelated dangers of various accounts.

An increase in the frequency of credential stuffing attacks stems from the widespread accessibility of compromised data and the simplicity of the attack technique. Even a 0.1% success rate can cause substantial loss for victims due to the sheer volume of attempts that can be executed with automated tools.

Why is Credential Stuffing So Effective?

Credential stuffing in cyber security is predominately successful due to the widespread practice of reusing passwords across multiple accounts and platforms. Managing unique passwords is challenging for most people due to memory issues, and most people use the same or similar passwords across various services.

Reusing passwords makes credential stuffing exceptionally effective and detrimental. Credential stuffing becomes more effective when combined with technological progress due to the increasing efficacy of bot technology that circumvents conventional security mechanisms like IP rate limiting.

What are the Implications of Credential Stuffing Attacks?

A successful credential stuffing attack can result in unfortunate consequences not only for users but also for businesses:

Effects of Credential Stuffing on Individuals

Individuals face several adverse consequences due to credential stuffing, including identity theft and financial loss. After successfully infiltrating a single account, malicious actors can potentially obtain access to other services, such as social media and banking or financial services platforms, to steal personal and financial data. Credential stuffing compromises a person’s privacy and security apart from causing significant loss.

Effects of Credential Stuffing on Businesses

Businesses also face numerous consequences due to credential stuffing due to the long-term implications for privacy and security. Credential stuffing attacks can induce substantial financial losses due to theft and operational disruptions. Additionally, businesses incur reputational harm when clients lose confidence in the efficacy of their security protocols. Inadequate protection of user data may subject companies to regulatory penalties, further compounding the financial and operational strain.

How to Prevent and Mitigate Credential Stuffing Attacks?

There are various methods to prevent a successful occurrence of credential stuffing. Here are a few steps that you can take:

How can Individuals Prevent Credential Stuffing Attacks?

People should use unique and varying passwords for different accounts to prevent credential stuffing. Multi-factor authentication (MFA) adds another security level because a person can authorize or reject a particular login attempt through the secondary authentication factor. MFA is essential in preventing credential stuffing attacks because it seeks login authorization and safeguards people’s accounts even when their details are compromised.

How can Companies Avoid Credential Stuffing?

Companies can prevent credential stuffing attacks by implementing a multi-layered security strategy. The strategy entails sophisticated security protocols, such as IP blacklisting and rate limiting, to hamper bot traffic and the surveillance of unusual access patterns. The approach enables businesses to identify potential intrusions and credential stuffing attacks proactively.

Companies must also educate employees on the significance of security best practices, specifically the risks of reusing passwords on multiple accounts. Implementing bot management solutions can aid in differentiating authentic user traffic from automated bot traffic, thwarting numerous attempts at credential stuffing. Individuals and businesses can substantially mitigate risks by understanding the complexities of credential stuffing attacks and deploying strong security protocols.

Conclusion

Conclusively, credential stuffing involves using previously stolen credentials or personal details to conduct mass login attempts on various services. Perpetrators exploit the common practice of using similar passwords on multiple sites or services to gain access to social media or bank accounts and steal personal information or resources.

Although credential stuffing poses significant threats, individuals and businesses can employ various strategies to prevent data and economic loss. Individuals must use strong and unique passwords across multiple platforms and multi-factor authentication to prevent unauthorized access.

Using diverse passwords and multi-factor authentication prevents data or financial loss even when personal information is compromised. Corporations must employ comprehensive security measures, such as IP blacklisting, bot management, and real-time threat detection systems to avert credential-stuffing attacks.

    About Author
    JG
    Jason Gray

    Jason heads the marketing efforts at OysterVPN.

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