All activities that break into a computer information system to divulge confidential data are called cyber-attacks. When a network finds a weak link in its connections, it could be due to the attack. This waning of robustness isn’t conspicuous most of the time, making it difficult for the users to spot any irregular presence or unauthorized activity on the system. Stealing data from a computer has become easy these days, so much so that the world of technology stands in the murky zone. Let us look at the most common types of cyber-attacks.
1. Denial-of-Service (DoS)
When a system’s resources are swamped in such a way that it is unable to respond to service requests, the computer might have been subjected to a denial-of-service attack. A Distributed Denial-of-Service attack is also similar to DoS, but the attacker’s computer doesn’t install it; instead, the malicious content might be launched from other host machines infected by the malware installed by the hacker.
2. TCP SYN Flood Attack
The attacker exploits the buffer space during a Transmission Control Protocol, and the attacker will deluge the target system’s small in-process queue with connection requests. When the connection queue fills up, the target system will crash.
3. Smurf Attack
This is a process in which the target network is saturated with traffic using ICMP and IP spoofing. The targeted IP addresses will be flooded with ICMP echo requests, which would pass onto all the IPs in the range. As a result, congestion is generated in the network by overwhelming it.
4. Ping of Death Attack
The attacker makes a move to use IP packets of sizes of around 65,535 bytes to ping the target system. The attacker will fragment the IP packets since packets of such a huge size aren’t allowed. As the packet reassembles in the target system, the computer is likely to experience a crash or other functional issues.
DDoS attacks are carried out using a network of computers infected with malware, and this process requires botnets throughout the breach of a particular system. The target system’s bandwidth and processing capabilities are overwhelmed by these bots. Since these zombie systems are located in different geographical regions, tracing their actions would be almost impossible.
6. Man-in-the-Middle Attack
In this hacking session, the attacker inserts a system between the communications of the server and the client to extract important information. Session hijacking, IP spoofing, and replay are the various types of MitM attacks.
7. Phishing and Spear Phishing Attacks
In this mode of hacking, mails from trusted people could contain malware. Hackers might have the guise to impersonate the person’s online presence to send you the mail with malicious attachments.
8. Drive-By Attack
Insecure websites are targeted by hackers to spread malware into the PHP or HTTP code. With these attacks, the user might be directed to a webpage controlled by the hacker.
Password attack, SQL injection attack, malware attack, eavesdropping attack, cross-site scripting attack are the other common forms of cyber attack Australia.