Cybercriminals have several tactics to gain unauthorized access to internet accounts, but two attacks that are often mistaken are credential stuffing and password spraying. Both of them are aimed at login systems, although they operate in completely different ways.
Credential stuffing uses stolen user name and password combinations, whereas password spraying is a technique where a limited number of common passwords are attempted against a large number of distinct accounts.
Being aware of the distinction can allow people and companies to detect unusual login activity, protect passwords more effectively and lessen the danger of account takeovers. In this article, we’ll cover the differences between credential stuffing vs password spraying, how they function, real-life instances, signals to watch out for, and how to protect yourself.
What Is Credential Stuffing?
Credential stuffing is an automated attack that involves thieves taking previously obtained username-and-password pairs and trying to enter in to additional sites and services. The attack is based on a simple problem of password reuse.
For example, if someone uses the same email address and password for an online shopping account, a social network account and an email account. If the shopping website is breached and credentials are stolen, attackers may try those same credentials on other services.
Attackers can employ automation to try thousands or millions of stolen credentials against different websites.
Credential stuffing is more than simply guessing a password, because the credentials are generally real and obtained from elsewhere.
How Credential Stuffing Works?
A typical credential stuffing attack will appear like follows:
- Criminals have access to stolen username and password combinations.
- They make lists of the credentials.
- The automated systems then check those credentials against another service.
- Successful logins are identified.
- Compromised accounts can be misused or sold.
A major factor to the success of credential stuffing is password reuse.
What Is Password Spraying?
Password spraying is a distinct sort of attack. Instead of trying several passwords against one account, an attacker tries one common password against many accounts.
This can help attackers avoid triggering account lockouts that may occur when several incorrect passwords are attempted against one account.
For instance, an attacker might try a common password against hundreds of accounts in a company. If one or more users uses that password then the attacker may get access.
Password spraying does not require previously stolen credentials. Instead it can fall back on common or predictable passwords.
Credential Stuffing Vs Password Spraying: Key Difference
The biggest difference is what the attacker already knows.
| Feature | Credential Stuffing | Password Spraying |
| Main method | Uses stolen credentials | Tries common passwords |
| Password source | Previously leaked/stolen passwords | Common or predictable passwords |
| Target approach | Many stolen credentials against accounts | One/few passwords against many accounts |
| Password reuse | Major factor | Not required |
| Automation | Commonly automated | Commonly automated |
| Main defense | Unique passwords + MFA | Strong passwords + MFA + monitoring |
Realistic Example
Credential Stuffing
For example, let’s say Priya uses the same password for an online shopping account and a social media account.
Her email address and password are compromised in a data breach at the shopping service. Attackers get the exposed credentials months later.
They don’t have to guess Priya’s password. Rather, they automatically verify the combination of email and password against other popular services.
The credentials work effectively on Priya’s social media account as she used the same password.
Now the attacker can potentially access the account, change its settings, or use it to target Priya’s contacts.
This is a textbook case of credential stuffing.
Password Spraying
Say you have a corporation with 500 employes.
The attacker learns the usernames of the company’s employes, but not their passwords. Instead than assaulting one employee’s account over and over, the attacker is trying a similar password against numerous employe accounts.
Most efforts fail, but one employe happens to have the password.
The attacker can then log in to that account and perhaps pivot deeper into the organization’s systems.
This is password spraying because the attacker tried several accounts with the same password instead of trying many passwords against one account.
Why These Attacks Are Dangerous?
Both are difficult to detect as attackers tend to automate login attempts and spread them over several accounts or locations.
Credential stuffing is particularly problematic for users that repeat passwords on multiple websites.
Password spraying poses a specific problem for businesses that have:
- Poor password policies
- A lot of user accounts
- Poor auditing of logins
- No 2-factor authentication
- Passwords that are common
- Leaked Usernames or Email addresses
After an attacker has successfully compromised an account, they may attempt to obtain sensitive information or use the account as a launch pad for further attacks.
How To Protect Yourself From Credential Stuffing?
Never reuse passwords. It is a huge safeguard against credential stuffing.
Use a strong, unique password on each required account. Your uncovered password will not give you immediate access to different accounts if a carrier is compromised.
A password manager can help you generate and purchase individual passwords.
Enable multi-factor authentication (MFA) where feasible. If attacker knows your password , you can add an extra step of authentication as a security measure .
How To Protect Against Password Spraying?
Organizations can lower their risk of password spraying with effective authentication practices and monitoring.
Key measures are:
- Use strong and unique passwords
- Turn on MFA.
- Watch for suspicious login attempts.
- Spot frequent failed authentications across various accounts.
- Don’t use common or hacked passwords.
- Where applicable, implement risk-based authentication.
- Maintain security systems and identity platforms.
Organizations Should Also Look For Patterns In Authentication Records That Could Indicate Password Spraying.
Generate A Strong Password With Our Password Generator
Password Generator – https://explainmetech.com/tools/password-generator/
One of the easiest ways to mitigate the risk of credential-based attacks is a strong, unique password.
Think of unpredictable passwords yourself, but utilize a password generator to generate random combinations of characters that are hard to guess.
You may use our ExplainMeTech Password Generator to generate strong passwords for your online accounts . Use a unique created password for each key account, including email, banking, social media, and work accounts.
Do not share the created passwords with anyone and do not store them in insecure notes or messages.
Other Ways To Improve Password Security
Having good passwords is only part of securing an account. See also more similar practices:
1. Use MFA
Enable multi-factor authentication wherever you can. It’s a layer of verification on top of your password.
2. Avoid Password Reuse
Passwords used on one site should never be used on another site.
3. Change Breached Passwords
If you find out that a password has leaked in a breach, change it immediately and don’t use the same password anyplace else.
4. Employ a Password Manager
A good password manager can generate and remember unique passwords for you, making it easier to minimize password reuse.
5. Watch for Suspicious Login Activity
You may receive alerts about strange sign-ins, new devices or places you don’t recognize, which can mean someone is trying to get into your account.
Credential Stuffing Vs Password Spraying: Which Is More Dangerous?
There is not one-size-fits-all solution. That risk depends on the target and the information the attacker has.
Credential stuffing can be quite effective if users reuse passwords and millions of stolen credentials are available.
Password spraying is especially risky for businesses that have a large number of accounts with weak or easily guessable passwords.
The greatest defence against both attacks is a mix of strong unique passwords, MFA, secure authentication procedures and constant surveillance.
Final Thoughts
Certificate stuffing and password spraying are great strategies that exploit weaknesses in password-first-based defense. Certificate stuffing uses stolen recurring credentials. Password spraying uses weak or regularly used passwords.
Strong, unique passwords for people, a password manager, and MFA can make a global difference. Organizations should have robust policies in place around multi-factor authentication activities as well as identity protection. Understanding those attacks is a great first step to safeguarding your virtual loans and personal information.
Frequently Asked Questions
1. What is the difference between credential stuffing and password spraying?
Credential stuffing occurs when a hacker accesses accounts using stolen username and password combinations. Password spraying is when you try a few popular passwords against a bunch of diverse accounts.
2. Does the completion of the certificate depend on the violation of the facts?
Certificate stuffing typically uses credentials stored from previously recorded breaches, leaks, phishing, malware, or various resources. The attacker then attempts to use their credentials in multiple bids.
3. Can MFA stop credential stuffing?
The effectiveness of MFA varies depending on the type of MFA and the specific attack, however, MFA can significantly reduce the chances that an attacker can effectively gain access to an account even if they have a stolen password.
4. How do I secure my account against password spraying?
Use long and detailed passwords, enable MFA, don’t use popular passwords, and be aware of suspicious login credentials.
5. Is it unsafe to use the same password on individual websites?
Indeed. Password reuse is the way that if a website leaks your password, attackers will likely try the same information on different offerings. Using accurate passwords is one of the best ways to avoid this possibility.
References
OWASP – Credential Stuffing Prevention Cheat Sheet
OWASP – Credential Stuffing Prevention Cheat Sheet
NIST – Digital Identity Guidelines: Authentication and Lifecycle Management (SP 800-63B)
Microsoft – Passwordless and Authentication Security
Microsoft Security – Authentication
Google – How Google Protects Your Account
Google Safety Center – Account Security
CISA – More than a Password: Multi-Factor Authentication
CISA – Multi-Factor Authentication
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