A cyber attack is any type of offensive action that targets a computer , computer networks or personal computer devices, using various methods to steal, alter or destroy data or information systems.
A cyber attack is a deliberate exploitation of computer systems, technology-dependent enterprises, and networks. It is an attack launched from one or more computers against another computer, multiple computers or networks, by way of malicious code.
Cybercriminals use a variety of methods to launch a cyber attack, including malware, phishing, ransomware, denial of service, among other methods.This alters the computer code, logic or data, resulting in disruptive consequences that can compromise data and lead to cybercrimes,
Two broad types of cyber attacks
Cyber attacks can be broken down into two broad types: attacks.
Targeted attacks and random/opportunistic .A targeted attack typically involves intelligent planning and occurs when an attacker selects and engages a specific target to achieve a specific objective.
Here the one goal is to disable the target computer or knock it offline. This is a denial-of-service attack breakdown a system’s resources so that it cannot respond to service requests. A DDoS attack is also an attack on the system’s resources, but it is launched from a large number of other host machines that are infected by malicious software controlled by the attacker.
Two, the other goal is to get access to the target computer’s data and perhaps gain admin privileges on it. These are the Man-in-the-middle (MitM) attack, phishing, password attack, Eavesdropping attack and more.
Targeted attacks are considered to be the more dangerous threat.
Opportunistic/Random attack on the other hand takes advantage of a vulnerable target that was previously unidentified to the attacker.
Active and Passive Cyber attack
An active attack is a network exploit in which a hacker attempts to make changes to data on the target or data en route to the target.The attacker efforts to change or modify the content of messages. Active Attack is danger for Integrity as well as availability. Due to active attack system is always damaged and System resources can be changed. The most important thing is that, In active attack, Victim gets informed about the attack.
A passive attack is considered as a threat to data confidentiality.he attacker observes the content of messages or copy the content of messages. Passive Attack is danger for Confidentiality. Due to passive attack, there is no any harm to the system. The most important thing is that In passive attack, Victim does not get informed about the attack
Cybersecurity threats are common for business, government, computers, smartphones, tablets, everything having sensitive information and connected to the internet. Hackers steal
- personally identifiable information (PII), also called Identity theft or Identity Fraud, like names, addresses, and social security numbers to break into someone’s accounts and exploit them.
- stealing of Bank account details, credit cards, and personal photos.
- Malware, pharming, phishing, spamming, spoofing, spyware, Trojans and viruses
- Website defacement
- Private and public Web browser exploits
- Intellectual property (IP) theft or unauthorized access
These cyber challenges can be stopped only by Cybersecurity.
First Cyber attack
The first cyber attack began with good intentions and ended with unexpected consequences. In 1988, Cornell University graduate student, Robert Tappan Morris, developed a program to assess the size of the internet.Read More