When an Entire American City Was Crippled by Ransomware - The Saint Paul Cyber Attack Reality Check

1955 words · 10 min

Last July, an absolutely devastating ransomware attack hit Saint Paul, Minnesota, causing one of the worst cybersecurity incidents in American municipal history.
The entire city’s computer systems were paralyzed, network communications failed, citizens couldn’t pay their water bills, libraries lost Wi-Fi access, and even city employees couldn’t work.

This turned out to be a ransomware attack orchestrated by a hacker group called “Interlock.”
What’s infuriating is that when the city refused to pay their demands, these criminals released 43GB of citizen data onto the internet..

Let’s examine exactly what happened and what we can learn from it.

iPhone 17 Air 2-Week Real Experience Review - Surprising Differences from 16 Pro Max

1425 words · 7 min

Being thin doesn’t automatically make something good, right?
Samsung’s Galaxy S25 Edge made a big deal about being thin, but when I actually used it, that’s all there was to it.
So when I saw the iPhone 17 Air announcement, I thought “Here we go again with the thinness bragging.”
5.6mm thick and 165g… Just looking at the numbers didn’t really impress me.

But after actually using it…
Oh wow, this is on a completely different level.
I’d been using the 16 Pro Max as my main phone for over a year, consoling myself with “it’s heavy but the performance is good,”
but the moment I held the Air, I realized how much I’d been suffering.

Just two weeks ago, I was thinking “if I’m buying the Air, might as well just get the 17 Pro,”
but now my mind has completely changed.

The shortcomings like the mono speaker and single camera pale in comparison to
the incredible satisfaction this lightness and thinness brings.

Honestly, I’m still amazed at how much more satisfied I am than I expected.

Your Phone is at Risk Too - Mobile Fake Base Station SMS Phishing Cases and Countermeasures

2444 words · 12 min

This is actually happening! Check if your phone is being hacked right now.
Hidden mobile base stations in cars are secretly approaching people.
A text arrives on your phone: “Emergency! Your account has been hacked. Check immediately”
In a panic, you click the link and enter your password… and soon cash is stolen from your account.
It sounds like a movie plot, but this is actually happening in real life.

In March 2025, a Chinese student in London drove around in an SUV for 5 days, sending smishing text messages to tens of thousands of people.
Similar incidents of fake text messages being distributed occurred in Bangkok, Thailand, Malaysia, and New Zealand.

Let’s find out what’s really happening and what we need to do about it.

South Korea's Consumer Recovery Coupon Policy - A Case Study in Digital Security

904 words · 5 min

South Korea is implementing its 2nd Consumer Recovery Coupon program, distributing 100,000 KRW (approximately $75 USD, equivalent to about 2-3 meals at a mid-range restaurant in Korea) per person starting September 22nd.
This nationwide initiative targets 90% of the population as part of economic recovery efforts.
However, alongside this beneficial policy, the Korean government is also addressing a significant challenge: the rise in smishing scams that exploit such programs.

Let’s explore how Korea is tackling both economic support and digital security simultaneously.

Windows 10 Support is Ending - Time is Really Running Out

1009 words · 5 min

Today, I need to talk about something quite serious.
Microsoft’s Windows 10 end of support date is really just around the corner.
It feels like Windows 10 was just released yesterday, but time has flown by so quickly.
October 14, 2025 - please remember this date.

Windows 11 Remote Desktop Port Change and IP Access Control Configuration

720 words · 4 min

November 2025 Latest Update
(This method works for Windows 10 as well)

The default port 3389 is widely known among hackers and can easily become a target for attacks.
Using a different port number is an essential security practice to protect your system.

Choose a port number randomly from the registered port range (1024-49151) to make it hard to guess.
This guide uses port 49151 as an example.