Happened to the place I work at too and I was glad it did. I had been fighting them for years about using images found off google, but they’d never listen. They’d insist we take an image off google and use it. Well my coworker worked on our website re-design and did just that, took an image off google and used it on our website. It was as generic image as it gets and we probably could’ve EASILY found a similar one on a legit free stock site. But they just never listened to me.
Until they got a bill from Ghetty images to the tune of $700 along with a cease and desist use notice.
Thankfully after that they finally started listening to me. A couple of our clients got nabbed as well by using copyrighted images from Ghetty and Shutterstock, with the watermark, even after we sent out notice telling them to stop doing that.
There are peoples where their only job is to seek out copyright offenders. I don’t know if they just sit there doing a reverse image search all day or how they do it, but they do it and can and will find you. It’s just not worth the risk with todays legit free resources out there.