"The investigation concerns whether Zovio and certain of its officers and/or directors have engaged in securities fraud or other unlawful business practices."
https://www.marketwatch.com/press-release/shareholder-alert-pomerantz-law-firm-investigates-claims-on-behalf-of-investors-of-zovio-inc---zvo-2021-10-29?siteid=nbsh
...and 2012...
https://www.benzinga.com/pressreleases/12/07/g2783484/pomerantz-law-firm-reminds-shareholders-of-bridgepoint-education-inc-of
...and 2015
https://www.law360.com/articles/721764
This is not the first time...
https://www.globenewswire.com/news-release/2019/03/11/1751400/0/en/Pomerantz-Law-Firm-Announces-the-Filing-of-a-Class-Action-against-Bridgepoint-Education-Inc-and-Certain-Officers-BPI.html