Rhode Island Public Transit Authority employees voted no confidence in management after a massive data breach.
Thousands of state workers received letters last month saying their personal information was compromised in the August attack.
The union representing RIPTA workers, Local 618, is calling for the resignation of chief officers and senior staff.
The union said management is "responsible for the cover up of the security breach."
"They're ignoring us at service review and safety meetings as we continue to deal with a dangerous pandemic. Along with the severe and egregious security breach of personal information, this lack of communication has resulted in a perfect storm," Nick DeCristofaro, the union's president, said in part in a release Thursday.
"The overwhelming vote of no confidence in RIPTA management demonstrates that our members' demands for change must be heard," he added.
Local 618 said it's considering potential legal action "along with others whose information was compromised in the security breach."
The Rhode Island Attorney General's Office is investigating the breach.