Cyber Security
Cyber security is the
practice of defending computers, servers, mobile devices, electronic systems,
networks, and data from malicious attacks. It's also known as information
technology security or electronic information security.
Organizations
transmit sensitive data across networks and to other devices in the course of
doing businesses, and cyber security describes the discipline dedicated to
protecting that information and the systems used to process or store it.
Cyber security is
important because government, military, corporate, financial, and medical
organizations collect, process, and store unprecedented amounts of data on
computers and other devices. A significant portion of that data can be
sensitive information, whether that be intellectual property, financial data,
personal information, or other types of data for which unauthorized access or
exposure could have negative consequences.
As the volume and
sophistication of cyber-attacks grow, companies and organizations, especially
those that are tasked with safeguarding information relating to national
security, health, or financial records, need to take steps to protect their
sensitive business and personnel information.
Cyber
Security can be categorize as follows:
· Network
security is the practice of securing a computer network from intruders,
whether targeted attackers or opportunistic malware.
· Application
security focuses on keeping software and devices free of threats. A
compromised application could provide access to the data its designed to
protect. Successful security begins in the design stage, well before a program
or device is deployed.
· Information
security protects the integrity and privacy of data, both in storage and in
transit.
· Operational
security includes the processes and decisions for handling and protecting
data assets. The permissions users have when accessing a network and the
procedures that determine how and where data may be stored or shared all fall
under this umbrella.
· Disaster
recovery and business continuity define how an organization responds to a
cyber-security incident or any other event that causes the loss of operations
or data. Disaster recovery policies dictate how the organization restores its
operations and information to return to the same operating capacity as before
the event. Business continuity is the plan the organization falls back on while
trying to operate without certain resources.
· End-user education addresses the most
unpredictable cyber-security factor: people. Anyone can accidentally introduce
a virus to an otherwise secure system by failing to follow good security
practices. Teaching users to delete suspicious email attachments, not plug in
unidentified USB drives, and various other important lessons is vital for the
security of any organization.
Cyber
Threat
The threat is defined
as a possibility. However, in the cyber security community, the threat is more
closely identified with the actor or adversary attempting to gain access to a
system. Or a threat might be identified by the damage being done, what is being
stolen or the Tactics, Techniques and Procedures (TTP) being used.
The global cyber
threat continues to evolve at a rapid pace, with a rising number of data
breaches each year. A report by Risk Based Security revealed that a shocking
7.9 billion records have been exposed by data breaches in the first nine months
of 2019 alone. This figure is more than double (112%) the number of records
exposed in the same period in 2018.
With the scale of the
cyber threat set to continue to rise, the International Data Corporation
predicts that worldwide spending on cyber-security solutions will reach a
massive $133.7 billion by 2022. Governments across the globe have responded to
the rising cyber threat with guidance to help organizations implement effective
cyber-security practices.
Types of
Cyber Threats:
The top five most
common cyber threats are:
a) 1. Social Engineered Trojans
b) 2. Unpatched Software (such as Java, Adobe
Reader, Flash)
c) 3. Phishing
d) 4. Network traveling worms
e) 5. Advanced Persistent Threats
Cyber
threats typically consist of one or more of the following types of attacks:
1) Advanced Persistent Threats
2) Phishing
3) Trojans
4) Botnets
5) Ransomware
6) Distributed Denial of Service (DDoS)
7) Wiper Attacks
8) Intellectual Property Theft
9) Theft of Money
1 Data Manipulation
11 Data Destruction
12 Spyware/Malware
13 Man in the Middle (MITM)
14 Drive-By Downloads
15 Malvertising
16 Rogue Software
17 Unpatched Software
The
threats countered by cyber-security are three-fold:
1. Cybercrime includes single actors or groups targeting
systems for financial gain or to cause disruption.
2. Cyber-attack often involves politically motivated
information gathering.
3. Cyber terrorism is intended to undermine electronic
systems to cause panic or fear.
So, how do malicious actors gain
control of computer systems? Here are some common methods used to threaten
cyber-security:
1.
Malware
Malware means
malicious software. One of the most common cyber threats, malware is software
that a cybercriminal or hacker has created to disrupt or damage a legitimate
user’s computer. Often spread via an unsolicited email attachment or
legitimate-looking download, malware may be used by cybercriminals to make
money or in politically motivated cyber-attacks.
There are a number of
different types of malware, including:
· Virus:
A self-replicating program that attaches itself to clean file and spreads
throughout a computer system, infecting files with malicious code.
· Trojans: A type of malware that is disguised as legitimate software. Cybercriminals trick users into uploading Trojans onto their computer where they cause damage or collect data.
· Spyware:
A program that secretly records what a user does, so that cybercriminals can
make use of this information. For example, spyware could capture credit card
details.
· Ransom
ware: Malware which locks down a user’s files and data, with the threat of
erasing it unless a ransom is paid.
· Adware:
Advertising software which can be used to spread malware.
· Botnets:
Networks of malware infected computers which cybercriminals use to perform
tasks online without the user’s permission.
2.
SQL
injection
An SQL (structured
language query) injection is a type of cyber-attack used to take control of and
steal data from a database. Cybercriminals exploit vulnerabilities in
data-driven applications to insert malicious code into a database via a
malicious SQL statement. This gives them access to the sensitive information
contained in the database.
3.
Phishing
Phishing is when
cybercriminals target victims with emails that appear to be from a legitimate
company asking for sensitive information. Phishing attacks are often used to
dupe people into handing over credit card data and other personal information.
4. Man-in-the-middle
attack
A man-in-the-middle
attack is a type of cyber threat where a cybercriminal intercepts communication
between two individuals in order to steal data. For example, on an unsecure Wi-Fi
network, an attacker could intercept data being passed from the victim’s device
and the network.
5.
Denial-of-service
attack
A denial-of-service
attack is where cybercriminals prevent a computer system from fulfilling
legitimate requests by overwhelming the networks and servers with traffic. This
renders the system unusable, preventing an organization from carrying out vital
functions.
v Cyber safety tips - protect yourself
against cyber attacks
How can businesses and individuals guard
against cyber threats? Here are our top cyber safety tips:
1.
Update
your software and operating system: This means you benefit from the latest security
patches.
2.
Use
anti-virus software: Security solutions like Kaspersky Total Security will
detect and removes threats. Keep your software updated for the best level of
protection.
3.
Use
strong passwords: Ensure your passwords are not easily guessable.
4.
Do not
open email attachments from unknown senders: These could be infected with
malware.
5.
Do not
click on links in emails from unknown senders or unfamiliar websites. This is a
common way that malware is spread.
6. Avoid using unsecure Wi-Fi networks in public places: Unsecure networks leave you vulnerable to man-in-the-middle attacks.
How to Prevent Cyber Threats
The best defense for
cyber threats for businesses are often simple matters but make all of the
difference when they are promptly and correctly deployed. One common defense
system is “patching” a system, a fix for an identified digital security flaw in
a product, service, platform or system.
There
are many technologies and security services arriving on the market that can
help companies and individuals combat cyber threats, including:
ü Secure
browsing and anti-phishing point solutions
ü Systems
that foster security team collaborations
ü Tools
that simulate continual attack scenarios
ü Security
service outsourcing
ü For
individuals, there are a few things that they can do to protect their sensitive
data:
o Create
sufficiently complex passwords and change them regularly
o Double-check
emails that ask you sensitive information or request that you open an attached
document.
o Use
anti-virus software to automatically protect your system from cyber threats.

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