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The role of Multi-Factor Authentication in data security

WWatcher

Credential theft is a common way malware enters business systems. Cybercriminals favor this type of attack due to its high success rate.

Implementing cybersecurity measures to protect access to systems is essential for ensuring a company can continue its operations safely and securely.

One effective measure to prevent unauthorized access to a system is implementing multi-factor authentication (MFA) for your company accounts.

What is Multi-Factor Authentication?

Multi-factor authentication (MFA) is a validation method requiring an additional code every time a user logs into an account.

When logging into a website or application using a username and password, the system prompts for an additional code to gain access. This code is typically sent to a mobile device or email address. MFA adds an extra layer of security to the login process to ensure the person attempting access is legitimate.

Types of authentication

The most commonly used factors for user verification are:

  • Knowledge: Something the user knows, such as a password or PIN.
  • Possession: Something the user has, such as a smartphone, a security token, or a secure USB device.
  • Inherent Traits: Something the user is, such as a fingerprint or facial recognition.

Types of cyberattacks prevented by Multi-Factor Authentication

  • Phishing attacks. Phishing deceives users into revealing credentials through fake emails or websites. With MFA, even if an attacker obtains the user’s credentials, they would still need the second authentication factor, such as an SMS code or biometric input, to complete the login.
  • Brute-force attacks. These attacks systematically test multiple combinations of usernames and passwords until they find the correct one. MFA blocks access by requiring an additional verification step.
  • Keylogging attacks. A keylogger is malicious software that records keystrokes to steal credentials. While a keylogger may capture a password, the attacker would still need the second factor to access the system.

Setting up secure Multi-Factor Authentication

Companies should establish policies that restrict access to private information, ensuring only authorized users can access specific data.

  • Create user roles. Access control policies can group users into roles based on their responsibilities, limiting their access to sensitive information.

Tools like WWatcher implement this principle by restricting the volume of files a user can download daily based on their role and activity. This ensures that, even in cases of credential theft, unauthorized users cannot download large amounts of confidential internal data.

  • Establish secure password policies. Require robust passwords, even with three or four-factor authentication. Passwords should include uppercase and lowercase letters, special characters, and numbers.

  • Periodically update passwords by mandating users to create new ones at regular intervals.

  • Implement the principle of least privilege. New users should always start with the minimum level of privileges and access rights necessary for their role.

Multi-factor authentication is an essential procedure for businesses to operate securely and avoid credential theft. By establishing role-based access policies and encouraging strong password practices, MFA can be fully effective in protecting your company’s systems and sensitive information.

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