The state of being free from danger or threat
the security of the nation's citizens
Another term for cybersecurity.
A negotiable or tradable liability or loan
The state of having reliable access to a sufficient quantity of affordable, nutritious food
A bolt used to securely close a door, window, etc.
Chiefly Law security put up as a bond, recognizance, or guarantee of good behaviour.
A software flaw which allows an unauthorized user to gain access to a system or network.
A person who puts up property as security or stands surety for someone (now rare).
A person or situation that poses a possible threat to the security of something
A writ relating to or backed by security.
A verification of the identity and trustworthiness of someone such as a government employee, in order to maintain security
A person employed to protect something, especially a building, against intruders or damage
A software or operating-system patch that is intended to correct a vulnerability to hacking or viral infection
A police organization, especially a secret one, charged with the protection of national security and often having extended powers.
(Especially in Hong Kong) a system whereby a local merchant stands as surety for foreign traders to ensure good conduct and payment of debts (now historical).
Any government system that provides monetary assistance to people with an inadequate or no income
National security, especially with regard to the threat of terrorism within a country’s borders
(Of a prison) having the minimum amount of restrictions on prisoners.
The safety of a nation against threats such as terrorism, war, or espionage
A person who analyses information about (the value of) securities.
A familiar blanket or other piece of soft fabric held by a young child as a source of comfort
A permanent body of the United Nations seeking to maintain peace and security. It consists of fifteen members, of which five (China, France, Russia, the UK, and the US) are permanent and have the power of veto. The other members are elected for two-year terms
Official name for MI5.
The cooperation of several countries in an alliance to strengthen the security of each
The state of being protected against the unauthorized use of information, especially electronic data, or the measures taken to achieve this
Financial and material provision for old age; (Canadian and (formerly) US (especially California)) a system of government-funded pensions for those aged over 65 (in the U.S., awarded only on a means-tested basis); the benefit paid under this system.
Security that exceeds maximum security; frequently attributive, designating a prison facility having such security.
A prison with the highest levels of restrictions on prisoners' movements and activities
A secret body established in the US after World War II to gather intelligence, deal with coded communications from around the world, and safeguard US transmissions
(In the US) a number in the format 000–00-0000, unique for each individual, used to track Social Security benefits and for other identification purposes
The former South African intelligence and security organization under apartheid
A body created in the US by Congress after World War II to advise the president (who chairs it) on issues relating to national security in domestic, foreign, and military policy
Using something as a guarantee
A federal scheme providing financial support for people with a disability or aged over 65, subject to means testing; the money paid out under this scheme; abbreviated SSI.
The Australian governmental agency responsible for dealing with internal security
Procedures intended to protect humans or animals against disease or harmful biological agents
Using something as a guarantee
(In the US) a federal insurance program that provides benefits to retired people and those who are unemployed or disabled
Official permission for someone to have access to classified information
Bonds or other promissory certificates issued by the government