Account Security

Cayman National strives to provide the best protection for its customers. As part of our defense-in-depth approach to account security, our staff are trained on what to look out for in common cyber-attacks. It is equally important for our customers to understand what threats are faced by every banking institution and know what they can do to help us protect their accounts.

You can protect yourself by following the tips and advice below:

Beware of fraudulent emails, SMS, or phone calls.

Social engineering is a common tactic that involves manipulating someone to reveal sensitive information such as passwords, PINs, or other information. Social engineers tend to rely on falsifying a trusted communication such as stating they are calling from the Bank, or they may try to create a sense of urgency or an emotional appeal.

To avoid social engineering scams:

  • Never share your login, PIN, passwords, or One Time Password (OTP).
  • Verify the identity of the person you are communicating with. If they claim to be calling from the Bank, and you suspect fraudulent activity, hang up and call back on the official main phone number

Phishing is a type of social engineering scam wherein fraudulent emails are sent. These emails may request information, contain a malicious link to a fraudulent website, or include a harmful document attachment

To curb phishing attempts, pause and ask yourself the following:   
  • Are you expecting the email?
  • Can you verify this by contacting Customer Support?
  • Does the email ask you for sensitive information? (I.e. password, PINs, login details or OTP)?
  • Does the email contain a suspicious link or attachment?

If you are not comfortable with your answers to all of these questions, you should delete the email. If you suspect fraudulent activity, you should not open the email and contact Customer Support for assistance.

Smishing is a tactic similar to phishing in which cyber criminals may use SMS messages, WhatsApp, or other social media avenues to socially engineer or achieve the same results as with email phishing.

You should follow the same tips above to avoid smishing attempts. Additionally, be sure that you initiated the action that requires any OTP request received for approval.  

If you receive a suspicious email, phone call, or text claiming to be from Cayman National, please report this immediately to This email address is being protected from spambots. You need JavaScript enabled to view it. or +1 345 949 8300 / (345)949-4655

Implement good security practices at home

  • Protect your devices by installing antivirus and anti-malware software and ensure all software and browsers are up-to-date.
  • Avoid installing browser extensions or plugins unless you have verified the software and its developer. Carefully read the permissions that the extension requires.
  • Use secure sites. Always look for the padlock symbol and “https” in the web address to make sure it’s secure and verify the URL in the address bar is for the site you are expecting.
  • Stay vigilant of spoofed websites. Fraudsters will create fraudulent websites that appear to be real. Look out for common indicators such as a close misspelling of the domain, poor grammar, or inconsistent contact information. Report any suspected spoofed Cayman National sites to This email address is being protected from spambots. You need JavaScript enabled to view it. or +1 345 949 8300 /(345)949-4655
  • Choose strong passwords that cannot be easily guessed by anyone (e.g. do not use your name, date of birth, pet's name, or telephone number). Never share your password with anyone.
  • Always logout completely when you finish online banking on any device.
  • Enable multi-factor authentication whenever possible. Cayman National’s online banking platform allows you to register your devices and utilize biometric recognition.

Sign up for Card Security Alerts and we’ll send you a SMS or email each time your card is used. You can also use our online banking platform to monitor your account activity.


On our side of the defense-in-depth strategy, Cayman National uses industry-standard security technology and practices to safeguard your account from unauthorised access, including:

Internet Security Protocols

To protect your information as it travels through the Internet, Cayman National uses multiple overlapping layers of security safeguards on communication.


Firewalls inspect all traffic that attempts to pass through the Cayman National network. A number of security filters and characteristics are assessed including message formatting and type of access requested. If the information fails any security checks, the information is prevented from passing through the firewall in either direction.

Secure Access To Information

With Cayman National’s online banking platform, you are required to enter not only your unique password and username, but also an extra level security parameter called the one-time password (OTP). Passwords are encrypted on Cayman National’s system, and they are not accessible to Cayman National employees. No one connected with this website or Cayman National will ever ask you for your password, PIN, or login credentials.