A New Way of Storing Data in the Cloud Era
“Cloud” isn’t the sky — it’s a global web of data centers and servers. Your files live on those disks, sync across devices, and are available anywhere you’re online — but that convenience raises questions about security and data sovereignty.
What we call the “cloud” actually refers to a vast network of data centers filled with countless servers. The photos or documents we save are ultimately stored somewhere on the disks of those servers.
These servers, scattered around the world, are linked together as a single virtual space. Even if the files aren’t stored on your own device, as long as you’re connected to the internet, you can access and use them just like they were on your own computer.
The core of cloud technology is synchronization (Sync). Thanks to this feature, when a file is modified on one device, the changes automatically appear on others. This allows us to continue working on the same data anytime, anywhere, on any device.
While the cloud gives us the freedom to access files anytime and anywhere, it also means that we are entrusting our data to someone else’s servers, which can lead to a loss of control over personal information.
Therefore, in the cloud era, we must think not only about convenience, but also about security and data sovereignty — our right to control our own information.
You can view the original blog post in Korean at the links below: