As someone writing computer programs for a living, I am increasingly concerned about the lack of common sense of people interacting with technology. It feels like the majority treat computers and smartphones as magic boxes, without any basic clue on how they operate, yet they completely depend on them.

Sadly, instead of being inspired by the possibilities enabled by technology, I feel like the common reaction to this lack of knowledge is fear and annoyance. So here we are: People don't want to apply security patches, we read about cyber-this and cyber-that each and every day and nobody comprehends the scale of the data collection by their governments.

There is, however, one particular topic where I can't stand the amount of ignorance at all: WiFi.

The router should be the single most important computer in any household or business relying on the Internet. Yet people don't want to spend any money on them, accept the complimentary black-box from their ISPs and don't maintain them (with software updates).

And instead of using its technology to connect together and to create a better experience for everyone, every access point transmits its signal as powerful as it legally can to drown out all other surrounding devices.

Anyways, this is not the topic I want to write about today. Today, I want to tell an anecdote about public WiFi.

Virtually every security expert tells us not to connect to public WiFi networks. And right they are, but we do it anyways. How bad can it be?

Turns out, really bad. Recently, I stayed at a cheap hostel in Vancouver. Their network was horrible although they promised "High-Speed Internet" on their website. It was in fact so horrible, that text-based sites like Hacker News took about a minute to load (If I didn't get a timeout error).

One rainy afternoon, I couldn't stand it anymore and decided to run some network analysis tools. Now, just for the record: I never had the intention to do anything malicious. That being said, I just looked up the standard gateway and manually entered its IP to learn about the router. It was a TRENDnet / D-Link device. I got a little suspicious that the SSID of the access point was indeed TRENDnet. Has no-one configured it to the name of the hostel or something different? Out of interest, I googled the standard login for TRENDnet devices and got admin:admin as the first result.

I never thought anyone would ever leave the login of their device the same as the factory settings, but I was wrong. This hostel, with hundreds of guests, just leaves their master key under their virtual doormat. It was as if they were just waiting for something to happen. Admittedly, there wasn't much to do on the default interface, but I could flash different firmware onto the router. It gave me chills thinking of all these possibilities someone could do on their network.

Well, I discovered a serious security threat. But I didn't want to walk up to the administration and tell them: "Hey, I have root access to your router!". I was afraid to get kicked out of the hostel or to risk lawsuit. In the end, I changed the SSID of to something along the lines of This router uses the default login.

The administration of the hostel discovered my change about two hours later. I think some customer asked them why they couldn't connect to the old SSID anymore. But I saw from the logs that the majority of people figured out what happened really quick and connected to the new source.

I don't know what I find sadder. The people connecting to an obviously compromised router right away or the administration not being able to fix the problem with "turning it off and on again". They didn't even try the reset button. I guess the router now just waits for some script kiddie to come by.

Technology isn't magic, even if it seems so for some people. These people just need to try reading the manual or to Google it. But even this seems like too much. The biggest threat to our online security aren't hackers - it's the technological illiteracy of the majority of our population.


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