The Daily WTF: Curious Perversions in Information Technology

The Frist Line of Defense

by Remy Porter in Feature Articles on 2026-10-15

We don't cover a lot of security issues here, simply because they're not usually funny. But sometimes, they are. So here's a quick hit about some recent ones.

We start with a very bad month for the Danish social security system, the Central Register of Persons (CPR). Last week, they detected a breach which exposed the personal details of 8.8m people. Per the Register article, a cybersecurity specialist correctly pointed out that treating your ID number as if it were a secret was a terrible idea in the first place, but unfortunately, so many systems have grown up around the idea that full knowledge of your state issued ID number as proof of identity, that the security expert is screaming into the wind. They're right, but it's going to take a lot to change.

10 comments - Last comment @ 12:33

A Diamond in the Rough

by Remy Porter in Representative Line on 2026-10-14

Mandy's co-worker recently learned about virtual inheritance in C++. It's become their new favorite button to push, and they only use virtual inheritance.

Virtual inheritance is one workaround for the "diamond problem", where you have an inheritance tree that "recombines" via multiple inheritance: when a child class has a Hapsburg-esque parentage, it's hard to decide which inherited methods are being invoked or overridden.

22 comments - Last comment @ 14:39

Digital Mail

by Ellis Morning in Editor's Soapbox on 2026-10-13

Ever get some special letter, card, or picture from a friend or loved one that you held onto, maybe even taped to your cube or office wall? Is it something you still look at fondly, something that lifts your spirits whenever you're down? Certainly, a thoughtful card or letter is much nicer than a thoughtful email.

Now imagine your special keepsake being scanned, censored, and converted into a digital file that you can only view from a tablet — assuming you can afford the fee to access the tablet. The original has been destroyed; it's gone forever. You'll never get to see or feel it in your hands.

50 comments - Last comment @ 14:06

A Type of Type Safety

by Remy Porter in CodeSOD on 2026-10-12

For some godawful reason, people like to explain object oriented concepts via analogy to biological taxonomies. I suppose it's easy to understand an "is-a" relationship (a cat is a mammal), but the down side is you get a complex and increasingly leaky analogy that over-emphasizes the importance of inheritance.

That's not to slight Alan's choice of using it to anoymize today's code. It's just a broad frustration on my part.

21 comments - Last comment @ 2026-10-14

Fast Quick

by Lyle Seaman in Error'd on 2026-10-09

Matias shared a standard sort of flubstituted fail-merge error'd; not really egregious, just routine. "I am {{emotionType}} to hear this."

9 comments - Last comment @ 2026-10-14

Racing Trains

by Remy Porter in Feature Articles on 2026-10-08

Robert G sends us a WTF from the outside, but I think we can come up with some hypotheses about what actually happened.

Robert was traveling by train. For complicated train reasons, the car he was seated on was not actually scheduled to continue with the train he was booked to ride, the replacement car missed its scheduled arrival, and the result was that Robert was left at a station needing to rebook his travel.

28 comments - Last comment @ 2026-10-14

A Tool for You

by Remy Porter in CodeSOD on 2026-10-07

A junior dev on the team had a simple question: in Java, how do I correctly read user input from the CLI and act on it?

Now, we can wonder about a junior dev not having such basic knowledge, but maybe they're new to Java specifically. Who knows. But Robert's team has a senior on it who "likes to mentor". This senior has strong opinions about how to write software, extreme confidence in those opinions, and has somehow been around the company long enough that he knows where the bodies are buried and no one will fire him.

16 comments - Last comment @ 2026-10-13

A Random Article

by Remy Porter in CodeSOD on 2026-10-06

Many years ago, DJ got his start doing odd web development jobs for a low hourly rate. He was only 19 when he got started, and what he lacked in experience he made up for in being cheap to hire.

As I said, that was many years ago, and he has since learned a lot. But he still has some code from his very first "someone paid me for this" project. This particular function needed to pick a random bit of content from their database to display in the "right side" banner area. This is how DJ implemented it.

14 comments - Last comment @ 2026-10-07