1. The state or feeling of being safe and protected.
2. The assurance that something of value will not be taken away; such as, job security.
3. Something that provides a sense of protection against loss, attack, or harm: Jim and Mary had the security of knowing that their car was thoroughly checked before departing on their trip.
4. Protection against attack from another country or subversion from within; such as, being a matter of national security.
5. Precautions taken to keep someone, or something, safe from crime, attack, or danger: Mike and his neighbors took strong measures of security to protect their property from burglars.
6. Guards, people, or an organization entrusted with the job of protecting people or something; especially, a building or institution, against crime.

Biometrics is used almost exclusively to measure the human-biological traits for security reasons.

A security system that uses magnetic strips in objects that are read by a scanner in an antenna or a sensitizer/desensitizer.

1. Protection resulting from measures designed to deny to unauthorized people any information of value that might be obtained by the interception and analysis of non-communications electromagnetic radiations.
2. A security procedure that is used to restrict access to valuable information.
3. Protection which results from all of the measures designed to prevent unauthorized people access to information of value which might be derived from the possession and study of electromagnetic radiations.

In computer protection, the ability of an invader to violate the integrity of a computer system: Security vulnerabilities may result from weak passwords, software bugs, a computer virus, or other malware, or a script code injection.

A security vulnerability is classified as a serious problem if it is recognized as a possible means of attack.

A system of legislative, or government, provisions aimed at giving assistance to individuals and families when confronted with certain contingencies or needs.

The provisions vary from country to country, but may include unemployment and sickness benefits, family allowances, maternity allowances, retirement income, etc.

Month-to-month resuscitation.