Internet Threats

November 27, 2018
    The internet is a place full of opportunities, inspiration as well as threats. Sometimes it seems that our life is passing in online mode. We can make purchases, communicate, learn something new via the Internet. But have you ever been wondering how many times you put your computer in danger every day? We have listed some online threats and tips that will help avoid them.

1. Worm

Network worm is the type of malware (malicious software) program that spreads itself through local and global (Internet) computer networks. There are worms with a whole set of different spreading vectors, victim selection strategies, and even exploits for different operating systems. The speed of worm spread depends on many factors: the network topology, the algorithm for finding vulnerable computers, the average speed of creating new copies. Worms lead to some harm to the network unlike the viruses that almost always damage or modify files on aimed computers.

2. Botnet

Botnet is a computer network consisting of several network hosts with bots running – automated software. Often, a bot is a program that is secretly installed on the victim’s device and allows an attacker to perform certain actions using the resources of the infected computer. Usually used for illegal or disapproving activities – sending spam, passwords forcing on a remote system, DoS and DDoS attacks. Bots are a set of software that can consist of viruses, firewalls, programs for PC remote control, and tools to stay invisible for the operating system.

3. Virus

Virus is one of the types of malware that can create copies of itself and inject into the code of other programs, system memory areas, boot sectors, and distribute its copies via various communication channels. The main aim of the virus is to spread along the whole computer and programs. The virus is very dangerous because it can delete files and even the operating system, invalidate data placement structures, block users’ work, etc.

4. Spyware

Spyware is a program that is secretly installed on a computer to collect information about the PC configuration, user, user activity without the one’s approval. It can also perform other actions: changing settings, installing programs without user’s knowledge, redirecting user’s actions, for example, collecting personal data or information about online surfing on the Internet.

5. Phishing

Phishing is a sort of internet fraud with the purpose to gain confidential user data access: logins and passwords. It is achieved by conducting mass mailings of e-mails on behalf of popular brands, as well as personal messages within various services, for example, on behalf of banks or within social networks. The letter often contains a direct link to a fraudulent site that is designed to steal user’s personal data: numbers of credit cards, logins, passwords, etc.

It is important to mention cybercriminals, also known as hackers, who use the malware mentioned above to attack other people’s, companies’, governments’ computers to spread viruses, steal data or identity information, etc. Companies and people suffer from cybercrimes losing their money, image, and the right to privacy.

Here are some useful tips on how to avoid malware or cybercriminals attacks:

  • Protect the computer with anti-virus/anti-spy software.
  • Create secure and strong passwords and change them regularly.
  • Be careful with open wi-fi networks, because usually they are not secured. Don’t use them as far as possible.
  • Check your email box carefully and do not click on questionable links, attachments.
  • Go to the sites with good reputation, preferable with SSL encryption.
  • Do not share your personal data (logins, credit card number) with strangers or people who you don’t trust.
  • Use special credit cards for shopping on the Internet.
  • Save all necessary information about transactions during online-shopping with the aim to protect yourself from online fraudsters.

These tips are obvious for the vast majority of people, nevertheless, the level of cybercrimes is getting higher from year to year. World Computer Security Day is a great opportunity to recall them and protect yourself and your computer from online threats.

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