How often do cyberattacks occur?
Every day, businesses are targeted by cyber-attacks. As former Cisco CEO John Chambers once stated, “There are two types of companies: those that have been hacked, and those that are unaware that they have been hacked.” It is estimated that the total number of events has increased by nearly fourfold between January 2016 and October 2017, according to the Cisco Annual Cybersecurity Report.
Why do people launch cyber attacks?
The number of incidents of cybercrime is increasing every year as more people attempt to take advantage of vulnerable business systems. The majority of the time, attackers are looking for ransom: A total of 53% of cyber-attacks result in losses of $500,000 or more in damages.
Cyberthreats can also be launched with nefarious intentions behind them. Some attackers see obliterating systems and data as a form of “hacktivism,” and they intend to do so.
What is a botnet?
In computing, a botnet is a collection of computers that have been infected with malicious software, such as a virus. To increase the magnitude of their attacks, attackers can take control of a botnet as a group and operate it without the owner’s knowledge. It is common practice to use a botnet to overwhelm systems in a distributed denial-of-service attack (DDoS) scenario.
Common types of cyber attacks
Malware is a term that refers to malicious software such as spyware, ransomware, viruses, and worms, amongst other things. Malware infiltrates a network by exploiting a vulnerability, which is typically created when a user clicks on a potentially dangerous link or email attachment, which then installs potentially dangerous software. Once the malware has gained access to a system, it can perform the following actions:
Access to critical components of the network is denied (ransomware)
Installs malware or other harmful software on the computer.
Obtains information by transmitting data from the hard drive in a covert manner (spyware)
Certain components are affected, and the system is rendered inoperable as a result.
Phishing is the practice of sending fraudulent communications that appear to come from a reputable source, most commonly through email, to defraud the recipient. The goal is to steal sensitive information from the victim’s computer, such as credit card and login information, or to infect the victim’s computer with malware. Phishing is a cyber threat that is becoming increasingly common.
What Exactly Is Phishing?
Attack with a man-in-the-middle
Known as eavesdropping attacks, man-in-the-middle attacks occur when an attacker inserts themselves into a two-party transaction between the parties involved in the transaction. Once the attackers have disrupted the traffic, they will be able to filter and steal information.
There are two common entry points for MitM attacks:
1. Attackers can insert themselves between a visitor’s device and the network when using an insecure public Wi-Fi network. Without realizing it, the visitor is funneling all of his or her information through the attacker.
When malware has gained access to a device, an attacker can use it to install software that will process all of the victim’s information.
A denial-of-service attack is a type of cyberattack.
DDoS attacks overload systems, servers, and networks with traffic to deplete their available resources and network bandwidth. Consequently, the system is unable to satisfy legitimate requests. Attackers can also launch this attack from several compromised devices at the same time. As a result, a DDoS attack is launched against the victim’s computer network.
SQL injection is a type of programming error.
Injection of Structured Query Language (SQL) occurs when an attacker injects malicious code into a SQL-based server, causing the server to reveal information that it would not otherwise reveal. SQL injection is a type of attack that can be carried out by an attacker simply by submitting malicious code into a vulnerable website search box.
You’ll learn how to protect yourself from SQL injection attacks.
Exploitation that occurs only once in a lifetime
A zero-day exploit occurs after a network vulnerability has been publicly disclosed but before a patch or solution has been put in place. During this period, attackers focus their attention on the publicly disclosed vulnerability. The detection of zero-day vulnerabilities and zero-day threats necessitates constant awareness.
DNS Tunneling is a method of encrypting data transmitted over the internet.
DNS tunneling is a method of communicating non-DNS traffic over port 53 that makes use of the DNS protocol. It utilizes DNS to transmit HTTP and other protocol traffic. When it comes to using DNS tunneling, there are numerous legitimate reasons to do so. However, there are malicious reasons to use DNS Tunneling VPN services as well as legitimate ones. When used in conjunction with DNS, they can be used to disguise outbound traffic, concealing data that is typically shared over an internet connection. DNS requests are manipulated for malicious purposes to exfiltrate information from a compromised system to the attacker’s infrastructure. The technique can also be used to send command and control callbacks from the attacker’s infrastructure to a hacked system.