how safe is online data storage

How Safe is Online Data Storage?

Many online data storage service providers have flourished in recent times claiming secure storage of data. But, are these services safe enough to store important information online without security issues? Let's find out to put your concern to rest.

DVDs and hard drives have long been used for storing data. Data storage is a necessity so as to retrieve the required information later, at any point of time. To obtain necessary data at a later stage, it is important to store the data in a safe and secure place. Hard drives and DVDs are a good option, but, they have their share of disadvantages. These storage devices can crash due to hardware failure or get lost, resulting in loss of data. To solve this problem, data storage service providers have come up with online data storage to protect and store immense amount of data that is generated in this digital age. Offline storage devices are always available, but it is said that storing data online is an extremely secure way of keeping data. We can question the safety of online data storage to rest assured that if we choose this medium of storage, our data will be forever secure. Why is Online Data Storage Considered Safe Storing data online is safer than offline storage because of the several measures that service providers take to ensure data safety. These security measures are definitely not available in offline data storage. Various safety measures taken up by service providers are given below. Pre-upload File Encryption Files containing data are stored on the server. Before being uploaded on the server, every file is encrypted using an algorithm. This algorithm is derived using a 'key', which is in turn derived from the password which the client creates to access the file. The algorithm used is quite complex and cannot be broken easily to gain access to the data stored in the file. When encryption is done, the file is uploaded on the server and can be accessed from anywhere in the world through the Internet. To open an online file, which was previously encrypted, the password has to be entered. If the password fails to match the one set by the client, the file fails to open. Thus, only the client who has the right password for opening the file can retrieve the stored data and not anyone else. Secure Socket Layer Encryption for Data Transfer Secure Socket Layer (SSL) is an encryption technique that is used as a standard to transfer data from the client's computer to the server and back. This security measure is also used for web communications. In this technique, a software is installed on the client's computer and the server, which forms a link between the two. When data is transferred from the client's computer, the server identifies it and forms a secure connection between the two, to facilitate uninterrupted data transfer without any loss. Hackers generally steal information during data transfer, but with SSL in place, the chances of such losses are greatly minimized. Server-Side Encryption of Files If pre-upload file encryption is not possible on the client's side due to poor speed of connection, many service providers have the option of server-side encryption. In this, encryption of data files is done after they are stored on the server. The passwords generated by server-side encryption are available with the client and data center administrators. If the service provider is reliable, the passwords are strictly available only to those who need to know about them and the client. Safety at Data Centers A data center is a place which manages all the data that is stored online. There are several servers in a single data center. Each server is usually enclosed in a cage which is under lock and key and is controlled by a user name and password. Not all servers are accessible even to administrators. Many other safety features like access cards, 6-digit door codes, hand scanners and fingerprint readers are used to ensure a secure environment for the stored data. Use of RAID Redundant Array of Independent Disks or RAID is set up in highly secure data centers. RAID helps in retrieving data from a failed hard disk. When a hard disk fails, all the data stored is transferred to a fresh, new hard disk by the help of an algorithm. Thus, client data is not lost and safety is maintained. Along with these high-tech security features, data centers are well-equipped to handle situations like fire, natural calamities, etc. After looking at these high-end security measures we can confidently say that storing data online is safe to a large extent. However, we cannot completely waive the possibility of security breach or data loss because it is difficult to achieve 100% security. To be on the safer side, one must create two backups of data so that even if one fails, you always have the other backup in place.

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