Cybercriminals have become increasingly bold when it comes to infecting computers with a type of malicious software called ransomware. Ransomware blocks end-users from accessing files and software applications on their computers. Hackers demand individuals or organizations pay a ransom to restore access to their files. The previously mentioned NHS attack — as well as thousands of other attacks around the world — was a ransomware attack.
The incident forced clinics to shut down and halted surgeries throughout the UK. To make matters worse, in many instances, those who pay the ransom still don't regain control of their machines. The hackers must provide users with encrypted keys to unlock the files, and they don't always comply.
Some ransomware deletes all the data on a computer even after the ransom is paid. Computer backups stored in secondary locations ensure ransomware attacks do not disrupt the work of organizations and individuals for long.
The most common way to backup computer files is to use the software that comes with the operating system on personal computers. Apple iOS and Microsoft Windows provide built-in utilities that offer backup and restore capabilities for computers.
You can either back up files on separate partitions on local drives or back up to external storage devices. Have you ever lost a lot of really important data? Or, short of that, have you ever felt a moment of panic where you thought you did? It should be a part of your cyber hygiene. To that end, consider this your ultimate guide to backing up your data. Data losses can occur in many forms, from hard drive failures to ransomware attacks and even human error or physical theft.
This way, whenever you have that crushing feeling that all your hard work and treasured memories are gone, you can rest assured that a data backup has your back. Still, 30 percent of people have never backed up their devices.
This might not seem like a lot — until you put it in perspective with how often data is lost:. So, think of a data backup as the bedrock of your digital disaster recovery plan. It can also be the case that your external hard drive or computer wear out and you lose your data.
For individuals this might include:. In choosing a data backup solution, individuals can take cues from how businesses develop their own data backup strategies and do this by considering the recovery point objectives RPO and recovery time objectives RTO :. For this reason, you also might want to consider:. Removable media generally refers to small portable devices mostly used to transfer files from device to device. This includes CDs, DVDs, and USB flash drives, also called pen drives, thumb drives, or jump drives, all of which are compatible with laptop and desktop computers.
Digitizing data storage lets you store large volumes of data in less space than paper would take up. Hard disk is a common data storage used in computers. Data is stored on the hard disk in the form of 0 and 1.
Hard disk stores information in the form of magnetic fields. Data is stored digitally in the form of tiny magnetized regions on the platter where each region represents a bit.
A solid state drive stores binary data through billions of tiny transistors. Each transistor can either exist in a charged or un-charged state. Is RAM permanent storage? No, RAM stores data only temporarily. In contrast, ROM does provide permanent storage. A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon.
By turning a small input current into a large output current, the transistor acts like an amplifier. But it also acts like a switch at the same time. Transistors make excellent electronic switches. They can turn currents on and off billions of times per second. Digital computers use transistors as a basic mechanism for storing and moving data.
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Backup and recovery describes the process of creating and storing copies of data that can be used to protect organizations against data loss.
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