The University of Texas MD Anderson Cancer Center has reported its second data breach since April involving an unencrypted mobile device.
The latest incident, which occurred in July, affected about 2,220 patients and involved a USB thumb drive. An April laptop incident affected 30,000 individuals.
In the latest breach, the Houston-based cancer center says a thumb drive containing patient data and research information was lost on one of its shuttle buses on July 13. After learning of the incident on July 14, the cancer center says it launched a search for the missing device and conducted a thorough investigation, but it did not locate the missing drive, according to a statement on its website.