CVS Pharmacy Inc., the largest pharmacy chain in the United States, said Friday that it had found no evidence that its data had been hacked.CVS said in a statement it was taking steps to improve its security, and that it would make changes in the near future.

The statement said CVS has hired security experts, which will include two cybersecurity specialists and will be deployed in every CVS store nationwide.

Cvs Pharmacy has more than 7,400 locations in the U.S. and Canada.