DEV Community

Cover image for Do you have a "Wait, that can't be right..." moment?
Paulo Henrique
Paulo Henrique

Posted on

Do you have a "Wait, that can't be right..." moment?

Recently, we had the XZ backdoor, discovered by sheer luck and nerdiness determination, as a dev started noticing an unexpected delay on SSH connections.

Yesterday, a new bug was discovered, again by the fact that someone simply noticed an odd behavior and decided to test further. In specific SQLite versions, if you tried to CREATE TABLE where the table name started with a number, the operation would take at least 1000x times longer than expected.

Now, everyone who works in IT has a similar story. I have lots of these, like the time I discovered an unhappy colleague was stealing confidential documents from the company, as I noticed the download/upload rate was strangely low and then stayed the whole morning looking at the network output of the proxy server via SSH.

Those stories where someone couldn't let an odd situation slip and then discovered a huge problem always amazed me. What's yours?

Top comments (1)

Collapse
 
tqbit profile image
tq-bit

I remember we once had a client whose internal file upload service stopped working out of the blue.

After hours of debugging we figured the issue was caused by an update of the formidable node.js library. Apparently, from v1.x to v2.x, the file property changed to fileName. Naturally the whole thing was written in js without any kind of intellisense.

And that's why you always read the docs before you run any kind of update