Feels like this title could benefit from clarification that 'Massive Attack' refers to the band and not the concept of a large scale attack; perhaps "Band 'Massive Attack' Turns Concert into Facial Recognition Surveillance Experiment"

Hahah, great point. As a music nut I knew what it was talking about, but to people who don't it might seem alarming.

Anyone who’s seen The Matrix has been exposed to Massive Attack in one of the most famous scenes from the movie:

https://youtu.be/6IDT3MpSCKI

In fact, I recall many songs from The Matrix being played nonstop back in my teenage gamer IRC days. Maybe even by others than just me

“Turns concert” clarified it to me.

That's what the capitalization of attack is doing.

Just as in Wayne's World, where the band being referred to was The Shitty Beetles, "It's not just a clever name!"

The casing sort-of disambiguates it.

My read was "cyber attack". I had to do some backtracking and context lookups to get the right parse.

My next stop was going to be LiveLeak to see the aftermath.

Why suggest that headlines should have enough detail to prevent people from reading the article and gaining a fuller understanding of the material? The problem isn't that headlines don't have enough details, it's that people want to or already do treat them like the full story and never have to learn anything nuanced therein.