DexCom Inc. (NASDAQ: DXCM) announced that two lots of Dexcom G7 sensors designated for destruction were stolen and sold to customers through unauthorized channels.

The company identified the theft through routine quality and accounting reviews. The stolen sensors from lots 1725204004 and 1725069002 were originally marked as scrap for failing to meet company standards and were sent to a third-party vendor for destruction and recycling.

Dexcom traced sales of the stolen product to Pharmsource LLC, which is not an authorized distributor but supplies some independent pharmacies and medical equipment distributors in the United States. The issue primarily affects US customers.

The stolen sensors carry specific safety risks. Lot 1725204004 contains sensors that were not properly sterilized, creating increased risk of skin infection. Lot 1725069002 includes sensors with elevated testing failure rates that may provide no readings.

"Nothing matters more to Dexcom than the safety of our users and maintaining the trust of the diabetes community," said Jake Leach, president and CEO. "We are treating this matter with the utmost seriousness and are working closely with regulators and other authorities."

The company is working with the FDA and other authorities to investigate the theft. Dexcom has not reported any severe adverse events associated with the stolen product.

Customers with sensors from the affected lots should not use them and can contact Dexcom Customer Support at 1-844-478-1600 for replacements. The company is notifying affected customers through multiple communication channels and has established a website at www.dexcom.com/theft-check for additional information.

Pharmacies and medical distributors that receive Dexcom products from authorized distributors are not affected by this incident.