firewall

If a thief has access to your passbook, they may be able to make unauthorized withdrawals. It is important to report any suspicious activity to your bank immediately to prevent further unauthorized transactions. Consider placing additional security measures on your account to prevent access by unauthorized individuals.

Below is additional information about helping to secure your computer and prevent any unauthorized access from other people or software programs; helping keep your information safe.

to prevent unauthorized persons from gaining access to a private network

Encryption