Security is freedom from, or resilience against, potential harm
(or other unwanted coercive change) caused by others.
Beneficiaries (technically referents) of security may be of
persons and social groups, objects and institutions, ecosystems or
any other entity or phenomenon vulnerable to unwanted change.
Refugees fleeing war and insecurity in Iraq and Syria arrive at
Lesbos Island, supported by Spanish volunteers, 2015 Security
mostly refers to protection from hostile forces, but it has a wide
range of other senses: for example, as the absence of harm (e.g.
freedom from want); as the presence of an essential good (e.g.
food security); as resilience against potential damage or harm
(e.g. secure foundations); as secrecy (e.g. a secure telephone
line); as containment (e.g. a secure room or cell); and as a state
of mind (e.g. emotional security).
A cyber attack is a deliberate exploitation of your systems
and/or network. Cyber attacks use malicious code to compromise
your computer, logic or data and steal, leak or hold your data
hostage. Cyber attack prevention is essential for every business
and organisation.
Here are some examples of common cyber attacks and types of data
breaches: