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A LITTLE HELP AGAINST RANSOMWARES (BIS) ? - June 2020
Back in 2017, we were talking about the landmark attack by WannaCry. We have gathered more help in case your screen is locked by a ransomware.
A ransomware will typically lock the screen of your computer and require a ransom against a key for the decryption of your files, which you can no longer access otherwise. By all means: never accept to pay this ransom, that would be the end of us all.
Some solutions exist. Start by determining the type of ransomware that you are a victim of.
• Encrypting ransomware: encrypts your files and makes them unavailable. A daily backup of your data would solve the issue.
• Scareware: intended to scare you. They threaten to harm your system if you don’t pay a ransom. Most anti-malware will be able to get rid of them and you can access your files from another computer or OS.
• Screen locking ransomware: this type of attack seems to make a return after the ‘success’ of WannaCry. It holds your data hostage and it seems almost impossible to intervene in any manner.
Here are some tools to get rid of these ransomwares and unlock your files:
• Trend Micro’s Ransomware Removal Tool: for Windows PCs.
• Kaspersky’s Ransomware Decryptor Site: to decrypt some files.
• Hitman Pro The Kickstart: an anti ransomware by SurfRight.
• Update Windows. Now. And say goodbye to Windows XP or even 7.
• With the help of your firewall, block ports 445, 139 and 3389.
• Use a secured online backup solution such as the one proposed by OCIM
More info: https://www.nomoreransom.org/
An excellent article on that very same subject at Cloudwards : https://www.cloudwards.net/what-is-ransomware/
TERABYTES, GIGABYTES, PETABYTES - May 2020
In the lexical field of digital technology, the vocabulary which makes us struggle the most is the metrics of computer memory. Confused, and essential, however, when it comes to choosing a processor, a computer, a tablet or a flash card.
The byte (or ‘bite’) is the smallest unit measurable in a computer. A byte is 8 bits, or eight bit byte.
But we are now getting more and more familiar with the terabyte. From one metric to the next, multiply by 1024. 1 terabyte is 1024 gigabytes.
• 1 terabyte is: 1498 CD-ROM, 728,177 floppy disks, 1 average computer in 2017, the monthly consumption of an Internet subscription, 130,000 digital photos, 1 months of data by Hubble the Telescope.
• 1 petabyte is: 1.5 million CD-ROM, 745 million floppy disks, the memory used to store the visuals of the film Avatar, 3 1/2 years of video recording 24/24 with an HD video, 4000 digital photos per day, every day, for a lifetime…
• 1 exabyte is: 736 billion floppy disks, 1.5 billion CD-ROM, 11 million movies, the entire Library of the US Congress … x 3000. In theory, a gram of DNA would contain 490 Exabytes of data!
But we are not anytime soon buying a USB stick in zettabytes or yottabytes. Needless to measure them, as it is basically impossible for us to just represent what they are.