Here are the methods that you’re privacy data to be secured:
1)Do not share your personal information to others which is including your Social Security number, passport number, birth certificate number, driver’s license number and credit card numbers.

3)Do not give out information unless you know the party with whom you are dealing. Must be ensure that the information given to the authorized users only. For examples: your customer, supplier and banker.

4) Use Biometric systems
Biometric systems refer to method to recognize human physical and behavioral traits uniquely.
It can be divided to :
Physiological – shape of the body. For examples, DNA, biometric fingerprint systems, biometric iris recognition.
- Behavioral – voice scan and keystroke monitoring.
Firewall is a part of a computer system or network is to block unauthorized access n a company’s private network and the internet. Function- set of devices to allow, deny, encrypt, decrypt, or proxy computer traffic between different security domains followed by a set of rules and other criteria.