U.S. Sen. Mark R. Warner (D-VA), Vice Chairman of the Senate Intelligence Committee and former tech entrepreneur, wrote to U.S. Customs and Border Protection (CBP) and South Korean company Suprema HQ, following separate but alarming incidents that impacted both entities and exposed Americans’ personal, permanently identifiable data.

In a letter to CBP, Sen. Warner inquired about the information security practices of CBP contractors, in light of a June cyberattack that resulted in the theft of tens of thousands of facial images belonging to U.S. travelers. In a separate letter, Sen. Warner requested more information from Suprema HQ, the company that owns web-based biometric lock system, Biostar 2, which experienced a cyber incident in August, resulting in the exposure of permanently identifiable biometric data belonging to at least one million people worldwide.