Password Checker V4 analyzes passwords based on various security criteria and assists users in selecting more robust passwords, which makes unauthorised access less likely. It is very useful for e-commerce sites, where the customer data and transactions should be secure.The module seamlessly integrates with OpenCart to ensure users meet a set standard for password security without interfering with the user experience.

Key Features

1. Real-Time Password Strength Meter: As customers type in their passwords, the module dynamically displays the password's strength (e.g., weak, moderate, strong) using colour codes or strength labels. Such instant feedback encourages users to enter more secure passwords. 
2. Customisable Password Policies: The store administrators can define password policies in terms of the minimum password length, including both upper case and lower case alphabets, numbers, and special characters.Above, this flexibility ensures that business houses easily implement password standards according to their security policies.
3. Optional Password Expiration & Reminders: This module can enforce the expiration of passwords and demand user password updates after a stipulated period. The interval for password expiration and setup of reminders can be assigned and configured by administrators, allowing for easy maintenance of an active layer of security covering all user accounts
   
4. Breach Detection: This feature checks passwords against known lists of breached passwords, which is usually done through integration with public or proprietary databases of compromised credentials. When a password has been compromised, the user is forced to change the password so that they don't use a password that is already publicly exposed. 
5. User-Friendly Error Messages: When passwords do not meet the security requirements, there are clear and descriptive error messages returned that inform the user why a password is invalid(e.g., "Password must include at least one special character").
6. Backend Analytics and Reporting: The administrator will be able to see reports of password strength data across accounts, which can identify trends in user behaviour or security risks. These insights help the business adjust policies as needed to further strengthen account security.
7. Multi-Language Support: Password Checker V4 helps support multi-language users by ensuring your error messages, prompts, etc., are going to the user's comfort language of choice. 
8. Compatibility with OpenCart Themes and Extensions: The module is designed specifically to coexist with more than one OpenCart theme/other OpenCart extensions—you'd be able to install it without hassle and still have more than a conflict-free result.  

Benefits

1. Enhanced Security for Customer Accounts: By requiring stronger passwords, the module makes it harder for unauthorized users to gain access to accounts, significantly reducing the chances of data breaches.
2. Improved User Confidence and Trust:  Customers prefer firms that are serious about the security of their account information. Real-time feedback about password strength and detection of breaches enhances customer trust of the site, as personal details will be secure. 
3. Reduced Costs and Efforts in Account Recovery: Passwords will have a reduced probability of recovering an account because of a breach in the account information. Thus, saving time and effort on the side of customer care service.
4. Increased Compliance with Security Standards: More online shopping sites have security standards and best practices that have to be adhered to. Password Checker V4 enforces more stringent password policies so that businesses adhere to these security standards.
5. Scalability for Growing Businesses: With increasing customer bases, so are the security risks. Password Checker V4 scales with the business and can be configured by administrators according to the changing security needs of the business.
6. Protects Business Reputation: A security breach might tarnish a company's reputation. Then, customers lose trust and eventually, money. This tool prevents that from happening since it enforces good password practices from the outset.