| Ransomware | |
| Ransomware is malicious code that is used by cyber criminals to launch data kidnapping and lock screen attacks. The motive for ransomware attacks is monetary, and unlike other types of security exploits, the victim is usually notified that an attack has occurred and is given instructions for how to recover data. Payment for recovery instructions is often demanded in virtual currency to protect the criminal's identity. Ransomware malware can be spread through malicious e-mail attachments, infected software apps, infected external storage devices and compromised websites. In a lock screen attack, the malware may change the victim's login credentials for a computing device; in a data kidnapping attack, the malware may encrypt files on the infected device as well as files on other connected network devices. Ransomware kits on the dark web have allowed cybercriminals with little or no technical background to purchase inexpensive ransomware-as-a-service (RaaS) programs and launch attacks with very little effort. Attackers may use one of the several different approaches to extort digital currency from their victims. For example:
While ransomware attacks may be nearly impossible to stop, there are important data protection measures individuals and organizations can take to insure that damage is minimal and recovery is quick as possible. Strategies include compartmentalizing authentication systems and domains, keeping up-to-date storage snapshots outside the main storage pool and enforcing hard limits on who can access data and when access is permitted. |
How to find and remove duplicate files from PC uplicate files can cause all kinds of problems on your computer, taking up precious storage room, confusing your photo or media manager apps, and generally getting in the way of searches and other operations when you'd rather they didn't. You don't have to accept duplicate files as an inevitability of running a PC, though: Here's how to get rid of them. Duplicate files can crop up for all kinds of reasons: Maybe you downloaded a file, forgot it was there, and then downloaded it again; maybe you copied a folder of images and then never got around to getting rid of the originals. Whatever the reason, they clog up your disk space and shouldn't be left to gather dust. For the purposes of this guide we're going to use DupeGuru-it's Lifehacker's pick as the best duplicate file finder for Windows, and it's available for Mac and Linux as well. If you're not taken with DupeGuru, then some of the best al...
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