Formjacking
Formjacking Definition
Formjacking is a type of cyber attack where hackers inject malicious code into a website's form fields to steal sensitive information, such as credit card details, entered by users. This technique allows attackers to compromise the security of e-commerce websites and exploit the personal data of unsuspecting customers.
How Formjacking Works
Formjacking involves various steps in order for hackers to obtain sensitive user information. These steps include:
- Infiltration of the website's code: Hackers gain access to a website's code, either by exploiting vulnerabilities or using social engineering techniques.
- Injection of malicious scripts: Once inside the website's code, the attackers insert malicious scripts into the form fields used for entering payment and personal information. These scripts are designed to capture and extract any data entered by users.
- Data capture and transmission: When users input their details, the malicious code captures this information and sends it to the attackers' servers, usually without the user's knowledge or consent.
- Unauthorized use or sale of stolen data: The stolen data can then be used for various malicious purposes, such as identity theft, credit card fraud, or sold on the dark web for financial gain.
Examples of Formjacking Attacks
Several well-known formjacking attacks have made headlines in recent years, demonstrating the severity and frequency of this type of cyber attack. Here are a few notable examples:
British Airways: In 2018, British Airways suffered a formjacking attack that affected approximately 380,000 customers. Attackers successfully injected malicious code into the airline's payment page, allowing them to capture customers' credit card details. The attack went undetected for several weeks, highlighting the sophistication of formjacking techniques.
Macy's: In 2019, the popular retailer Macy's fell victim to a formjacking attack. Hackers used malicious code to intercept and steal customers' credit card information as it was being entered on the company's website. The attack affected an unknown number of customers, highlighting the potential risks of online shopping.
Ticketmaster: In 2018, Ticketmaster, one of the world's largest ticket sales and distribution companies, experienced a significant formjacking attack. The breach affected thousands of customers who purchased tickets through the website, allowing hackers to steal their payment card details. This attack showcased the vulnerability of even well-established websites to formjacking.
Prevention Tips
Preventing formjacking attacks requires a combination of technical measures and user awareness. Here are some tips to help safeguard against formjacking:
Keep software updated: Ensure that all website software, including content management systems and plugins, are regularly updated. Updates often include security patches that address vulnerabilities that formjackers can exploit.
Use security tools: Implement website security tools, such as Content Security Policy (CSP) and Subresource Integrity (SRI). These tools can detect and block unauthorized changes to a website's code, helping to prevent formjacking attacks.
Regularly monitor website code: Regularly inspect your website's code and form fields for any signs of tampering or unauthorized modifications. Monitor your website's logs and look out for any suspicious activity that may indicate a formjacking attack.
Educate users: Raise awareness among users about the risks of formjacking and the importance of safe online practices. Encourage users to be cautious when entering personal and payment information on websites and to report any unusual or suspicious behavior.
It is important to stay vigilant and proactive in protecting sensitive information from formjacking attacks. By following these prevention tips and staying informed about the latest security practices, individuals and organizations can minimize the risks associated with formjacking.