Easy to find:

https://www.epi.org/publication/new-evidence-widespread-wage...

https://www.epi.org/blog/new-data-infosys-tata-abuse-h-1b-pr...

https://www.aila.org/ice-it-company-pleads-guilty-h-1b-visa-...

https://www.nolo.com/legal-encyclopedia/how-to-recognize-and...