■ Hidden dangers on the Internet

We do a lot of things online every day: we send emails, check social media, and manage our bank accounts.

But behind this convenience, there is an invisible danger lurking.

Did you know that when you use public Wi-Fi, someone can snoop on your data?

In fact, last year, I was shopping online while using the free Wi-Fi at a cafe, and a few days later, I received a notification of a suspicious login attempt.

Fortunately, there was no damage, but the experience made me realize the importance of digital security. The concept that emerged at this time was the ‘VPN tunnel’.

■ VPN Tunnel, What is it?

A VPN tunnel is the core mechanism by which a virtual private network (VPN) protects your data.

Simply put, it is a technology that creates your own safe secret passage on the huge public highway called the Internet.

On a typical Internet connection, data travels unencrypted and can be easily intercepted by hackers or third parties.

A VPN tunnel, on the other hand, encrypts data and creates a secure path between your device and the VPN server, preventing outside access.

Just like a train passing through a tunnel, data moves to its destination while being protected from outside eyes. (Reference site: VPN Tunnel )

■ Changes brought about by VPN tunnels

I experienced the power of VPN tunnels firsthand when I used them.

When I turned on a VPN to bypass the Great Firewall while traveling in China, I didn't just access blocked sites.

Even when logging into my banking app via airport Wi-Fi, I felt safe knowing my data was encrypted thanks to the VPN tunnel.

Additionally, VPN tunnels are also useful for bypassing regional restrictions.

For example, this tunnel opens the way for using overseas streaming services that are not available in Korea, or conversely, for watching Korean dramas abroad.

This technology, which can provide both security and freedom, has become an essential element of digital life.

■ Essential skills for safety and freedom

Beyond a simple technical term, a VPN tunnel is a sturdy shield that supports the digital life of modern people.

It protects your personal information from hackers, gives you a free Internet beyond censorship, and lets you access the content you want, wherever you are.

The minor inconveniences I experienced made me realize the value of VPN tunnels.

Now I have a habit of turning on my VPN every time I use public Wi-Fi or travel.

If you too want to have a safe and free experience in the digital world, we recommend that you open the door to a VPN tunnel.

This is not just a choice, it is a necessity for all of us living in this era.