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Let me share my experience of getting unintentional threats to my device. My laptop had ever been infected by some unknown malwares but I did never know where this was particularly come from. It happened a long time ago when I was an undergraduate college in which at that time, portable computers such as notebooks and laptops were popular among college students. But as far as I remember, at that time, students were likely to exchange the course materials through their own flash disk rather than sending the email to their peers, and this happened frequently. And I guess that the more we shared course files, the quicker our own laptops infected.
I was just afraid when I knew that the files could copy themselves or they seemed to be replicated into shortcut files but could not be opened. I had already tried to consult with my peers and the university officers, then I installed the best anti-virus software to make full system scanning and update regularly. As I new computer user, I was shocked when finding all the infected files has missed these were quarantined. But day after day I’d been familiar with anti-virus; my computer’s performance had reduced to become slowed down.
I consider the stage of disease prevention in public health consist of primary, secondary, and tertiary stages, and I think that it can also be implemented for computer protection against cyber attacks. The primary stage is about raising awareness of our personal responsibility, such prevent to receiving files through external devices, setting up a strong password, ignoring stranger emails in the spam, and knowing our vulnerability level to the threats. The second approach is called specific protection by installing the best anti-virus and updating the antivirus software. The third level is to conduct early detection or full system scanning and knows the sign of infections. Then, the last step is, when our computer is infected; take mitigation steps to minimize the side effects such as running a virus scan, deleting or quarantining the files, and disconnecting from the internet
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Of course, my computer had been attacked by viruses. It came from copying the data of my colleague from their portable drives. Once my computer were infected, they caused some malfunction of the programs, deleted some files, and slowed down my computer. I was not sure where the viruses come originally from, however, there was the possibility that my colleague downloaded that some files from some dangerous website.
To prevent the attack from viruses again, I have used antivirus program to detect infected files before I download them to my computer. The program can detect threat, malware, viruses, worms, and notify me not to download those files.
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Several years ago, my personal computer was compromised. Since I downloaded a free video editor on an unreliable website, I found that my computer would always have a loud fan noise even when I wasn’t doing anything.
When I checked I found that my CPU was used at 90-99% all the time, causing overheating and fan overload.My solution was to back up my data and format my computer. finally, I can go back to working normally again.
After that incident, I learned to only download programs from reliable websites or use genuinely licensed ones to prevent these problems.-
I can’t remember how many times I’ve lost my files because I need to reinstall Windows! It was such a pain to set-up everything from scratch. Backups weren’t a thing before, good thing external drives are getting cheaper nowadays! I agree on using genuinely licensed programs to prevent any sort of malware infecting the system.
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I have experienced some Malware since I started using computers up until now.
When I was in high school, the internet wasn’t widely used. Files had been shared between students at printing stores using public computers with USB flash drives. Apart from that, when the internet was new, without knowledge of security and choice of website, downloaded free files and programs from unknown websites were regularly done. These behaviors caused Virus spreading to many devices which slowed devices, automatically replicated files and restricted the accessibility of using some programs.
In the present, because of wide internet usage, personal information and valued assets could be accessed via internet. Phishing methods have been used to steal people’s information. Almost everyday, I have received scammed messages via e-mail, phone call or phone messages which are from fake official accounts such as look alike banking email accounts. These phishing messages create urgent situations and convince people to click the link, give password and information for example asking password to get the prizes. However, I have never complied with these kind of messages.There are many ways to protect computers from Malware above.
For virus, Anti-virus software could be installed to assist users for virus detection and regular scanning systems.
For Phishing, More than just setting strong passwords, Anti-phishing phrases could be set to assure that the important messages are from the real, official account. Using Multi-factor Authentication such as OTP, Biometric, USB security keys and google authentication with passwords might enhance the security of our information or slow down the stealing process.
Moreover, User’s networking behavior is important as well. Be prepared for the threat and decide consciously, such as avoiding unknown links or using legitimate websites. -
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In the workplace setting, there are several logical and physical security controls in place to ensure security of the system. For example, company issued laptops are forbidden to install any other applications not approved by the company (an administrator prompt will pop-up). Other logical controls include password refresh every 90 days, use of alphanumeric+ symbols. In terms of physical security, our office is equipped with access cards such that only employees can enter the room. In terms of online security, intensive spam filters are set and any external emails are automatically tagged as “external” with warning messages. So far, I have not encountered any security breaches in the workplace.
Meanwhile, I had encountered several instances where my PC got infected with virus and worms. It was rampant during the early days of the internet, like the use of LimeWire to download songs (files disguised as songs), downloading .exe files on some website offering a cracked version of a paid software. Flash drives were also the common source of infection, particularly from public school computers and computer shops. Sometimes, antivirus works however, I had experienced wherein I had to completely perform a hard reset (reinstall Windows) on the computer because it was too slow.
As preventive measures, only download software from legitimate developers. Enable auto-updating of definitions of antivirus programs, perform quick scans on your PC from time to time, visit websites that look legitimate and inspect the URL if you are really on the website you are supposed to visit.
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My workplace, a server for main HIS system was once attacked by a ransomware. No one knew where it came from, yet it is not that anyone should take the blame. The hospital information system was down for about a day before the recent backup has been restored. Since then, an information system security literacy has been enforced. I’m quite sure that the only way that malware was able to get into the main server was by executing an untrusted application on the server itself. Because that server was located in a different subnet, behind firewall and only authorised personnel can access. Fortunately, other computers resided within the network were not affected. It was one of the biggest downtime in the hospital information system and we all have learned the potential threats by running malicious software from an untrusted source.
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My laptop had been compromised. Lack of knowledge and awareness of cybersecurity, back in the day, we usually used to share files or folders using a USB drive, and that was probably the unintentional transmission of infection especially when we used a certain public computer such as an internet cafe which might have a poor security system. My laptop markedly slowed down every task and performance and at that time my antivirus software was found outdated.
Generally, there are many ways to prevent malware attacks, you need to set up full protection of your devices including installing a firewall and automatic updates anti-virus/anti-spyware software, putting the browser security setting at a high level, encrypting wireless communication, and also practicing the habit of precaution as a user, such as creating a strong password, checking out the secure web site, downloading software from the developer, sharing a file and dealing with an unknown link, pop-ups and email properly.
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I personally have little experience with the virus/malware attacking since I used MacOS for a long time.
However, I also experienced once during my high school when I use the Window laptop at that time.I’m not quite sure where the virus came from, but I think it came from the USB flash drive that I and my friends used together to exchange files during projects.
At that time, I found that my antivirus shown red pop-up alerting the virus detection, therefore I let program to clean the flash drive before I transferred the files to my computer.
Luckily, there was no file damage or system damage at that time.
I let my friends know this event and recommended her to update the anti-virus software to prevent further spreading.After that event, I rarely use my friend USB flash drive or let my friend borrow mine since the flash drive could be the carrier of computer virus. I also not use my flash drive to transferred file from the public computers, such as library computers, computers available in printing department.
For my own computer, I always updated the anti-virus software and always alerts with any pop-up or unidentified link. After that I change my laptop to MacBook and have never faced this situation. However, I still aware of other potential threats such as phishing website. -
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From my experience using personal notebook, I haven’t attacked by viruses because I have an up-to-date virus protection program and I do not open the untrusted emails or links.
I personally have no experience or heard of computer attack at my workplace. This is because my organization has a direct link which it connects from to the information technology (IT) office in the USA (not through the ISP in Thailand). The oversea main office will be the one who blocks all the possible malicious mails and websites. They also blocked possible malicious content or SPAM emails sent from outsiders. Basically, all computers and notebooks in the organization have automatically virus and threat protection program scanned to protect the devices from threats. Yet, the USB is not allowed to be used in the office (devices) unless it was screened by IT staff.
In addition, all employees in the organization are required to do security training, which is mandatory every year. This educates and helps employees aware of threats that could occur anytime.
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I have a little experience with virus attacks on my own computer in the past during my high school it came from using USB in the public area. I could not remember the outcome, but the result was due to the anti-virus software expired. An update and installation of anti-viral applications are required.
At my workplace, I do not have any experience in virus/malware attacks due to security is highly concern in my workplace. Every staff member needs to train in security. No USB or external devices can be used. All staff’s laptops will have automatically virus/malware protection program. Phishing is another thing to be concerned about. My company likes to send a false e-mail that is intended to check if the staff was aware it is untrusty. Once we accidentally open the e-mail and click on the link, we are then required to retrain on phishing and use the link/attachment with caution.
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My laptop used to be attached by a virus because I share USB flash drives with my friends. I realize that my laptop was attacked by a virus since the anti-virus program cautioned me. The program suggests deleting the suspect files that might contain viruses. Therefore, based on this case, I can prevent this by avoiding sharing USB flash drives and passing the file through e-mail.
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The last time I experienced virus was about ten years ago when I used a computer in the public computer service to transfer the file between my flash drive USB and the computer. Later when I use this USB to connect with my personal laptop, some of the files on my laptop are disappeared. The laptop tends to work differently. After that, to prevent the virus, I installed a licensed anti virus program on my laptop.
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