- A cyber security threat is any harmful assault that attempts to gain unauthorized access to data, disrupt digital activities, or damage data.
- Corporate spies, hacktivists, terrorist groups, hostile nation-states, criminal organizations, lone hackers, and disgruntled workers are all examples of cyber dangers.
- Several high-profile cyber assaults have resulted in the exposure of sensitive data in recent years.
Example: The 2017 Equifax data breach, for example, exposed the personal information of around 143 million people, including birth dates, addresses, and Social Security numbers.
Example: Marriott International said in 2018 that hackers gained access to its systems and stole the personal information of nearly 500 million clients. The inability of the firm to develop, test, and retest technological measures like encryption, authentication, and firewalls permitted the cyber security danger in both cases.
Types of cybersecurity Threat?
Spyware, ransomware, viruses, and worms are examples of malevolent software. When a user clicks on a malicious link or attachment, malware is triggered, and harmful software is installed. According to Cisco, once malware is launched, it can:
- Install harmful software
- Disrupt Individual parts
Emotet is described as “an sophisticated, modular banking Trojan that primarily works as a downloader or dropper of other banking Trojans” by the Cybersecurity and Infrastructure Security Agency (CISA). Emotet is still one of the most expensive and devastating viruses."
3) Denial of Service
A denial of service (DoS) attack floods a computer or network, preventing it from responding to queries. A distributed DoS (DDoS) attack accomplishes the same goal, except it comes from a computer network. To interrupt the “handshake” procedure and carry out a DoS, cyber criminals frequently deploy a flood assault. Further methods may be utilised, and some cyber criminals take advantage of the period while a network is down to launch other assaults. According to Jeff Melnick of Netwrix, an information technology security software business, a botnet is a sort of DDoS in which millions of devices may be infected with malware and controlled by a hacker. Botnets, sometimes known as zombie systems, are designed to attack and overpower a target’s processing capabilities.
4) Man in the middle
When hackers inject themselves into a two-party transaction, this is known as a man-in-the-middle (MITM) assault. According to Cisco, after blocking transmission, they may filter and take data. When a visitor utilises an unprotected public Wi-Fi network, MITM attacks are common. Attackers create a barrier between the visitor and the network, then use malware to install software and steal data.
Phishing attacks employ a forged communication, such as an email, to persuade the recipient to open it and follow the instructions therein, such as submitting a credit card number. “The purpose is to steal sensitive data such as credit card and login information or to infect the victim’s laptop with malware,” according to Cisco.