Cyber-attacks are deliberate attempts made by malicious minded people. Their purpose is to breach the network system of other people or businesses. Hackers usually, look for some kind of benefit from upsetting the network of victims. Cyber-attacks are round the clock activities, which have been escalating every year. Hacker’s goal is to benefit from susceptible business networks like seek for ransom or other ulterior motives that are to destroy systems and data [also called ‘hacktivism’].
Hikvision blog offers tips and ways of preventing a security breach. Startup businesses need to use reliable cybersecurity tools and be proactive in preventing cyber-attacks.
Different kinds of cyber-attacks
It is a type of eavesdropping attack, which occurs when the attacker seeks to insert between two-party transactions. The moment traffic gets interrupted the attacker filters and steals the information.
It is malicious software that includes viruses, spyware, worms, and ransomware. Vulnerability like clicking an infected email or link attachment can cause installing of pesky software on your computer. As soon as they gain access in your system, malware can –
- Install other damaging software
- Block access to networks main components
- Spy on sensitive information on the hard drive and transmit
- Unsettles specific components intending to make the system unworkable
DDoS [Distributed denial-of-service] attack
DDoS floods networks, servers, or systems with traffic that can exhaust websites bandwidth and resources. Consequently, the system cannot fulfill legal requests. This attack gets launched using multiple compromised devices.
Fraud communications via email are sent, which appear to be coming from credible sources. The aim is to steal confidential information like login or credit card details or install malware on the computers of the victim.
After a network’s vulnerability gets announced a zero-day attack hit just before a fix or patch is implemented. The hacker targets the disclosed susceptibility within this window time. Constant awareness is crucial to detect exposure to a zero-day attack.
Structured Query Language injection happens when hacker inserts a malevolent code within a server using SQL. The server is forced to reveal data, which it normally wouldn’t. Hacker conducts a SQL injection attack to submit toxic code within a weak site search box.
DNS protocol is employed over port 53 to interact with non-DNS traffic. Many legal and malicious reasons are available to use DNS tunneling. For hacking DNS tunneling can be utilized to mask outbound links as DNS, thus disguising data, which gets shared via the internet. DNS requests are exploited to exfiltrate information from compromised structure to hacker’s system. The attacker can also control and command the compromised system.