What is 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. The term applies in a variety of contexts, from business to mobile computing, and can be divided into a few common categories. The U.S. government spends $19 billion per year [1] on cyber-security but warns that cyber-attacks continue to evolve at a rapid pace. To combat the proliferation of malicious code and aid in early detection, the National Institute of Standards and Technology (NIST) recommends continuous, real-time monitoring of all electronic resources. 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. Cyberterror is intended to undermine electronic systems to cause panic or fear. Common methods attackers use to control computers or networks include viruses, worms, spyware, Trojans, and ransomware. Viruses and worms can self-replicate and damage files or systems, while spyware and Trojans are often used for surreptitious data collection. Ransomware waits for an opportunity to encrypt all the user’s information and demands payment to return access to the user. Malicious code often spreads via an unsolicited email attachment or a legitimate-looking download that actually carries a malware payload. Cyber-security threats affect all industries, regardless of size. The industries that reported the most cyberattacks in recent years are healthcare, manufacturing, finance, and government [2]. Some of these sectors are more appealing to cybercriminals because they collect financial and medical data, but all businesses that use networks can be targeted for customer data, corporate espionage, or customer attacks. So, how do cyber-security measures protect users and systems? First, cyber-security relies on cryptographic protocols to encrypt emails, files, and other critical data. This not only protects information in transit, but also guards against loss or theft. In addition, end-user security software scans computers for pieces of malicious code, quarantines this code, and then removes it from the machine. Security programs can even detect and remove malicious code hidden in Master Boot Record (MBR) and designed to encrypt or wipe data from computer’s hard drive. Electronic security protocols also focus on real-time malware detection. Many use heuristic and behavioral analysis to monitor the behavior of a program and its code to defend against viruses or Trojans that change their shape with each execution (polymorphic and metamorphic malware). Security programs can confine potentially malicious programs to a virtual bubble separate from a user's network to analyze their behavior and learn how to better detect new infections. Security programs continue to evolve new defenses as cyber-security professionals identify new threats and new ways to combat them. Related Articles: [1] https://www.techrepublic.com/article/obama-seeks-19b-for-cybersecurity-in-2017-a-36-increase/
The scale of the cyber threat
End user protection
