3-D Secure is a fraud prevention tool that provides additional security for online transactions. Issuing banks use 3-D Secure to help verify the cardholder’s identity during a transaction.

How can I help keep sensitive cardholder data secure?
To help keep sensitive cardholder data secure, we recommend that you do the following:
Keep your software and applications up to date
Make sure you have the latest updates for any software or applications on your computer or POS system. For example, you need to keep the following up to date:
- Antivirus software
- Operating system
- POS applications
Restrict access to sensitive cardholder data
You can restrict access to sensitive cardholder data and by doing the following:
- Keep back-office equipment away from the front of your store.
What do I need to do to comply with PCI-DSS?
To comply with PCI-DSS requirements, you must do the following:
- Use equipment and systems that comply with the PCI-DSS’s requirements for processing and storing sensitive cardholder data
- Educate your employees about the best practices for working with cardholder data
- Complete an annual self-assessment questionnaire (SAQ) or an on-site audit by an external assessor each year
- Carry out software scans to discover potential flaws in your system
Best practices
You should also follow our best practices to help you secure your network, which include the following:
Do
- Use only PCI-DSS approved PIN entry devices
- Use a properly configured firewall on your network and computers
- Use strong passwords and change the default passwords on hardware and software
Don’t
- Share passwords with employees
- Use passwords more than once
- Use weak or insecure protocols for connecting to your access point
- Connect to access points you don’t trust or haven’t set up yourself
- Leave your POS devices unattended
What can I do to protect my business against hackers?
You can reduce the risk of a hacker attack on your business by doing the following:
- Installing security software and keeping it up to date
- Limiting access to your wireless network
- Keeping work and personal devices separate
- Keeping “backroom” technology away from the sales floor
- Limiting administrative access on business devices
- Ensuring your employees understand the latest payment technologies
- Regularly training your employees
Limiting access to your wireless network
Limiting access to your wireless network reduces the risk of your network being hacked.… Read More “What can I do to protect my business against hackers?”