How safe is your computer?
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This document provides information about computer security and malware. It discusses how malware can enter computers through vulnerabilities and includes examples of different types of malware like viruses, worms, Trojan horses, and spyware. It also provides tips for protecting computers like installing antivirus software, using firewalls, updating the computer regularly, and not visiting harmful websites. The document notes that NASA donated used computers without clearing hard drives, which could have led to sensitive information loss. It emphasizes the importance of computer security and breaking hard drives before disposing of computers.
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https://blog.ahasayen.com/malware-and-malicious-programs/
Virus trojanworm
A computer worm is a standalone malware program that replicates itself to spread to other computers, often using security failures to access targets without needing to attach to other programs like viruses. Worms usually harm networks through consuming bandwidth, and as incidents increase it is important to protect businesses with internet presences from the monetary losses caused, estimated at $1 billion per occurrence.
computer virus ppt.pptx
A computer virus is a malicious program that can replicate itself and spread from computer to computer without permission. It can slow down or damage infected systems. The first computer virus, called "Creeper," was created in 1971. Later viruses caused more harm by deleting files or collecting users' personal data. To avoid viruses, users should only download files from trusted sources, use antivirus software, keep systems updated, and be wary of email attachments from unknown senders. Other malware like spyware and Trojans also pose threats by monitoring users' activities or gaining control of infected devices without consent.
IT viruses
This document provides an overview of different types of malware, including viruses, worms, Trojans, rootkits, spyware, and keyloggers. It defines each type and describes how they work and the harm they can cause. Viruses and worms spread automatically while Trojans and rootkits conceal their presence on a system. Spyware tracks users' online activities for advertising while keyloggers record keyboard inputs to steal login credentials and passwords. The document also discusses disadvantages of malware infections like slow performance and unlaunchable applications. It recommends using security software like antivirus, antispyware, and firewalls to prevent malware and provides tips for removing infections like using anti-malware tools or reinstalling the operating system.
How Computer Viruses Work
Computer viruses work by attaching themselves to other programs and replicating when those programs are run. There are different types of malware including viruses, worms, and Trojan horses. Viruses first emerged when personal computers became widespread and people shared software over bulletin boards and floppy disks. Early viruses embedded themselves in executable files or boot sectors to automatically spread. Later, email viruses and worms that exploited security vulnerabilities allowed malware to spread more easily over networks. Spyware is generally not designed to damage computers but can track users and change browser settings without permission. People can help protect themselves by using antivirus software, avoiding unknown programs, and practicing safe web browsing habits.
Computer Security 101
Malicious software like viruses, spyware, and Trojans can damage your computer and lead to identity theft. To detect malware, check for strange computer behavior like slow performance or unexpected file downloads. Use antivirus software to scan for and remove malware, and keep the software up to date to protect against new threats. Regularly applying operating system and software updates also helps prevent infections.
COMPUTERS ( types of viruses)
The document provides information about computer viruses, including what they are, how they spread, notable early viruses, types of viruses, signs of infection, and how to detect and prevent viruses. It begins with acknowledging those who helped with the project. It defines a computer virus and explains how they replicate and cause harm. It discusses how viruses spread through various means like email attachments, networks, infected disks, and more. It notes that the first virus was Brain in 1986. It outlines different types of viruses like Trojans, spyware, worms, and more. It lists signs of infection like slow performance, apps not starting, and security programs being disabled. It concludes with tips for preventing viruses like using antivirus software, avoiding suspicious
Computer malware
This document discusses computer malware infections, including common types like viruses, worms, trojans, spyware, ransomware, and botnets. It describes what each type is and how it can harm computer systems. The document provides solutions to deal with malware infections, such as installing antivirus software, keeping it updated, backing up files, and not using open Wi-Fi. It emphasizes that prevention is key and good cybersecurity practices can help reduce risks of malware infections.
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How safe is your computer?
- 4. Here is my computer…
- 6. and, here is yours…
- 9. My computer…
- 11. Your computer…
- 12. Some where in here… My computer…
- 13. Why
- 14. because, you did not know about…
- 16. Computer security is the process of preventing and detecting an unauthorized access to your computer.
- 17. Give it some thought ! • Name three things you do that are harmful to your computer. • How can you protect your computer? • What is the significance of the Stuxnet worm and NASA’s donation of computers?
- 18. HOME are computers not secure? does malware enter? can you do?
- 20. This is one of the first signs you notice, when MALWARE enters your computer.
- 21. Malware is a malicious software that enters a computer without the owner’s consent.
- 22. You are on your computer working normally and suddenly something pops up.
- 24. Viruses and Worms enter your computer and copy, damage or delete your data.
- 25. Trojan Horses pretend to be helpful software
- 26. Trojan Horses pretend to be helpful software but their purpose is external excess to the computer.
- 27. You might have seen something similar to this…
- 29. Such fake antivirus scanners are called SPYWARE
- 30. Spyware secretly watches and records your actions online.
- 31. Spyware secretly watches and records your actions online or sends you endless pop-up ads.
- 32. Phishing is a criminal process to acquire sensitive information
- 33. Phishing is a criminal process to acquire sensitive information by pretending to be trustworthy.
- 34. There are also many other kinds of malware like wabbits, adware, backdoors, keyloggers etc.
- 35. Click to go HOME Click to continue
- 40. Malware?
- 42. Through Computer Vulnerabilities How did that enter?
- 43. Computer Vulnerabilities are weaknesses or loop holes in a computer software through which an attacker sends malware. Example…
- 44. A famous computer worm in 2010 called Stuxnet attacked various computers in the world because of many vulnerabilities such as…
- 45. “A flaw was found in the way Windows XP systems are allowed to switch user keyboard layouts.”
- 46. Through this and many more vulnerabilities the worm infected about 100,000 computers.
- 47. Click to go HOME Click to continue
- 48. Whenever a virus attacks, there is always an increase in the total number of hits in the world.
- 49. What can you do to stop this increase?
- 51. Use programs at lower
- 52. Turn on Firewall
- 53. Did you know?
- 54. NASA sold some of its computers without clearing the hard drives. It might have lost sensitive information.
- 55. You could have done the same…
- 56. So, break the hard drive before disposing your computer
- 59. Listen to your computer and don’t visit harmful websites
- 60. Create Back-ups
- 61. What if you don’t follow these methods?
- 64. Loss of confidential information
- 65. which could result in…
- 66. Remember this… My computer…
- 67. However, if you do follow these rules, you and your computer will be…
- 68. HAPPY
- 69. By Sanjana Kambalapally March 4, 2011 ITGS Project