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Category: Security (page 1 of 2)

28 fake advertising agencies causing forced redirections!

28 fake ad agencies

Scams of all kinds multiply on the web, from now classic Viagra to Windows pop up inviting you to clean your PC urgently. The organization of the culprits is gets increasingly sophisticated. Continue reading

Your computer is infected ! Call Microsoft.

If you frequently use Chrome on your Windows PC, you may have already seen a page during a surfing session telling you that your computer was infected, that your browser was blocked, and that in desperation there was only one thing left for you to do: Call Microsoft! Continue reading

Sharing everything carries
unsuspected risks…

Mark Zuckerberg has often said: his ultimate vision is to connect all the inhabitants of the Blue planet (and perhaps beyond) into a culture of integral sharing. Continue reading

Spectre allows the execution of malicious scripts via your browser!

meltdown spectre malicious scripts browser

You’ve probably heard of two vulnerabilities recently revealed by a 22-year-old German researcher, a member of Google’s Project Zero team, Jann Horn: Meltdown and Spectre. Continue reading

A new warning against
malicious browser extensions.

malicious-extensions-chrome

Today, Google Chrome holds nearly 60% market share in the world of browsers (followed by FireFox and Internet Explorer, both oscillating at around 13%). A dynamic ecosystem has developed around this market leader. Continue reading

If your computer is slower than usual, it may be the fault of your browser …

If you constantly use your internet browser (especially Chrome), you will probably notice that the more tabs you open, the slower your machine gets. Each open tab consumes resources from your processor.
There are ways to pause unused tabs, such as The Great Suspender, but these are extensions that can cause other issues, even at the security level. Continue reading

Browsers are two-way windows.

browsers are open windows

For most of us, web browsers are an open window to the endless twists and turns of the internet. But these two-way dormers also allow the outside world to intrude, at times, sneakily into our privacy, record our every move on the web so as to understand our aspirations and influence our behaviour, not to talk of simply infecting our machines, by pure desire to harm or to sell us a cleaning solution. Continue reading

Using your browser to save your passwords? Be careful, you could be tracked …

password could be cracked browser

Remembering different passwords for the wide range of sites we visit daily is a real challenge. How many times did you not have to press the “forgotten password” link to generate a new one? Some services have noticed the aberration of the classic password and offer to authenticate via a code received by SMS or a push notification in a dedicated app. This saves you from constantly having to go back through email. This is the most secure technique, which is also found in the double-authentication process. Continue reading

‘WannaCry’ Wakeup Call For Online Security

 

Ransomware - paying for access to files

A massive cyber attack struck the globe last Friday, affecting 150 countries and over 250,000 computers including those of major government organizations and corporate operations. This ransomware dubbed ‘WannaCry’ is fearsome because once it is activated on a device, it encrypts all the files so that they are inaccessible. At that point, it instructs the computer owner to pay a ransom in Bitcoin in exchange for unlocking their files. 

So what can you do to make sure you’re protected against this vicious ransomware?

  • Be a conscious clicker: an email or some other form of message can contain infectious attachments and links that can spread malware onto your device.You can simply hover your cursor over email links to reveal the URL’s destination. If you are not sure, do a search on the sender to find out more and stay on alert.
  • Don’t be forgetful about updates: immediately install updates to your operating system and to all your software as they become available. Such updates for your device’s system are designed to fix vulnerabilities which ransomware can target. 
  • Backing up your files is key: ransomware works with a hacker first encrypting your hard drive, which makes your computer still operable, but the catch is that you can’t access any of your files. If you already have your important files backed up on an external drive, you would not have to pay a hacker to decrypt them if you get attacked.
  • Remain aware on social media: social media is all about connecting and sharing with others. Therefore, it is essential to remain in a security headspace to avoid clicking on infectious downloads when on Facebook, Instagram, or even Snapchat.
  • Always stay official: remember to only download apps from official application stores. This will reduce the probability of downloading a pirated versions of apps that contain infectious malware.

All in all, staying vigilant on the web is the most crucial wisdom. Hackers around the globe are always looking for new ways to make trouble in return for their almighty dollar, so don’t make their lives easy.  Always think twice before clicking and make sure you are using updated versions on your system. If your device becomes affected, get in touch with Europol for assistance in your native language.

Sources

Fortune, http://fortune.com/2017/05/14/ransomware-wannacry-faq/

Owl Detect, https://www.owldetect.com/uk/stay-safe-online/archive/nhs-cyber-attack-what-steps-have-you-taken/

ABC News, http://abcnews.go.com/US/simple-things-protect-ransomware-attacks/story?id=47410339

5 Frequent Types of Malware: Explained

Types of malware hackers use

You may have heard malware thrown around, but do you know what it means? Learn more about the largest types of malware we come across on the web.

What is malware?

Malware is short for malicious software, meaning software that can be used to compromise computer functions, steal data, bypass access controls, or otherwise, cause harm to the host computer. Here are explanations on the five most observed types of malicious programs to watch out for:

1. Adware 

Adware is a form of financially-supported malware that usually presents itself in the form of unwanted advertisements displayed to a user. The Internet is filled with these types of programs that can hijack your PC for profit. Most of them are hidden inside so-called “free” downloads and pop-up ads that forcibly install software on systems with active vulnerabilities.

2. Spyware

This type of malware covertly collects information and transmits it to interested parties. Information gathered includes web sites visited, browser and system information and IP address. Spyware does not have any infection mechanisms and is usually dropped by a Trojan. A hacker uses spyware to track your internet activities and steal your information without you being aware of it. Credit card numbers and passwords are the two most common targets.

3. Trojan Horses 

Just like the trojan horse from ancient greek mythology, this type of malware is disguised as a safe program designed to trick users, so that they unwittingly install it on their own system, and later are sabotaged by it. Normally, the hacker uses a trojan to steal both financial and personal information. It can do this by creating a “backdoor” to your computer that allows the hacker to remotely control it.

4. Viruses

Like a virus that can infect a person, a computer virus is a contagious piece of code that infects software and then spreads from file to file on a system. When infected software or files are shared between computers, the virus then spreads to the new host.

5. Worms

Similarly, worms also replicate themselves and spread when they infect a computer. The difference, however, between a worm and a virus is that a worm doesn’t necessitate the help of a human or host program to spread. Instead, they self-replicate and spread across networks without the guidance of a hacker or a file/program to latch onto. 

 

Surf safe with UR: all downloads are automatically scanned for viruses and if you arrive on a suspicious website, you will immediately be alerted.

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