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Preventing Business Email Compromise (BEC) 

Effective strategies to strengthen corporate security and counter email fraud

Business email compromised by a virus

Table of contents 

  • Business Email Compromise (BEC): what it is 
  • Business Email Compromise BEC: attack methods 
  • Impacts of Business Email Compromise 
  • Prevention and protection from BEC Business Email Compromise

Business Email Compromise (BEC): what it is 

Business Email Compromise (BEC) is a sophisticated and targeted scam that affects businesses of all sizes, causing billions of dollars in losses worldwide each year.

This type of fraud involves compromising corporate email accounts, usually through phishing or spear phishing attacks.

The goal of these attacks is to deceive employees into transferring money or disclosing confidential information. 

Business Email Compromise BEC: attack methods 

Fraudsters use various methods to carry out a BEC.

The most common types of scams include: 

  • Spear phishing 
    Spear phishing is a highly targeted form of phishing. Through this attack, malicious actors gather specific information about an individual or organization to create convincing and personalized emails.

    These emails often appear to come from trusted sources such as colleagues or business partners and may contain requests for money transfers or access to credentials. 

  • CEO fraud 
    CEO fraud is a type of BEC where fraudsters impersonate senior company executives such as the CEO or CFO, sending urgent emails to HR or finance department employees.

    These emails typically request a quick money transfer or the disclosure of confidential information. 

  • Fake invoices 
    In this method, attackers compromise a legitimate email account to send fake invoices to clients or the company’s finance departments.

    The invoices appear authentic, but the payments are directed to bank accounts controlled by the fraudsters. 

  • Email account compromise
    Attackers may also directly compromise corporate email addresses through credential theft.

    Once access is obtained, they can: 
  • Monitor corporate email 

  • Gather sensitive information 

  • Send fraudulent emails directly from the compromised account for data theft 

Impacts of Business Email Compromise 

BEC can have severe financial and operational consequences for businesses.

Financial losses can range from a few thousand to millions of dollars, depending on the scale of the scam.

Additionally, companies may suffer: 

  • Reputational damage 

  • Loss of customer trust 

  • Additional costs for recovery and securing systems 
Business IT system under phishing attack

Prevention and protection from BEC Business Email Compromise

Below, we detail how businesses can strengthen their defenses against these sophisticated attacks. 

Continuous education and employee training 
Ongoing training is essential to keep staff informed:

  • On the latest tactics used by cyber criminals 

  • On best practices for mitigating these threats 

Training sessions should include: 

  • Phishing simulations
    Regular phishing exercises help employees recognize and safely handle phishing attempts via email. 

  • Updates on new threats
    Periodic information on new fraud methods and recent attacks to maintain high vigilance. 

  • Security best practices
    Teach the importance of using complex passwords, not disclosing confidential information without verification, and using secure communications for discussing sensitive data. 

Implementation of stringent verification procedures 
To minimize the risk of BEC, businesses should implement control procedures that include: 

  • Multi-level verification for financial transactions
    Require verification steps through multiple channels, such as direct phone calls, before authorizing money transfers or making significant changes to financial details. 

  • Approval policies for sensitive information requests
    Ensure that all requests for sensitive information, such as personal or financial data, are approved through a clear and verified chain of command. 

Adoption of advanced technological solutions 

The adoption of advanced technologies can provide an additional layer of defense against BEC: 

  • Strong authentication systems
    Implementing two-factor authentication (2FA) for access to corporate accounts reduces the risk of credential compromise. 

  • Anti-malware and anti-phishing software
    Use security solutions that include real-time protection against malicious software and phishing attempts. 

  • User behavior analytics tools
    Monitor and analyze user behavior to identify suspicious activities such as unusual access to corporate email accounts or unusual file modifications. 

  • Digital signatures and encryption
    Protect corporate communications with digital signatures and encryption to ensure the integrity and confidentiality of data exchanged via email. 

Regular review of security policies 
Finally, it is vital that organizations regularly review and update their security policies to adapt to changes in the threat landscape and available technologies.

This includes: 

  • Periodic security audits
    Conduct regular audits to identify and mitigate vulnerabilities in systems and corporate practices. 

  • Employee feedback
    Encourage employees to report security issues and suggest improvements to strengthen corporate defenses. 

By implementing these strategies, businesses can not only reduce the risk of falling victim to Business Email Compromise but also improve their overall resilience against a wide range of cyber threats. 

In conclusion, it is undeniable that Business Email Compromise is a real and evolving threat that requires a comprehensive approach to prevention.

By combining education, verification procedures, and technological solutions, companies can significantly reduce the risk of falling victim to these devastating scams. 


FAQ 

  1. What is Business Email Compromise (BEC)?
    Business Email Compromise (BEC) is a scam that involves compromising corporate email accounts to deceive employees into transferring money or disclosing confidential information. 
  2. How does Business Email Compromise occur?
    It occurs through methods such as spear phishing, CEO fraud, sending fake invoices, and email account compromise. 
  3. What are the common methods of BEC attacks?
    Common methods include spear phishing, CEO fraud, fake invoices, and email account compromise. 
  4. What are the consequences of a BEC?
    Consequences include significant financial losses, damage to corporate reputation, and additional costs for securing systems. 
  5. How can businesses prevent BEC?
    Businesses can prevent BEC through employee education, implementing verification procedures, and using technological solutions. 
  6. What is spear phishing?
    Spear phishing is a targeted attack where fraudsters gather specific information about an individual or organization to create convincing and personalized emails. 
  7. What is CEO fraud?
    CEO fraud is a scam where fraudsters impersonate senior company executives and send urgent emails to employees requesting money transfers or confidential information. 
  8. What technological measures can help prevent BEC?
    Measures such as two-factor authentication (2FA), anti-phishing filters, and anomaly detection systems can help prevent BEC. 
  9. How severe can financial losses from BEC be?
    Financial losses can range from a few thousand to millions of dollars, depending on the scale of the scam. 
  10. Why is it important to verify money transfer requests?
    Verifying money transfer requests is essential to ensure they are legitimate and to prevent fraud. 
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