Medtronic has released a safety notice to users of some of their insulin pumps citing cybersecurity concerns. 

The alert explains that some of their insulin pumps from 2012 or earlier use "wireless radio frequencies" that could potentially be used to hack the devices, and control the amount of insulin delivered.

According to an alert issued by the FDA, as many as 4,000 customers could be impacted, but so far there have been no confirmed reports of any breaches from outsiders. 

Mark Lanterman of Computer Forensic Services, who has nearly 30 years of experience in the cybersecurity field, said the risk is low but still worth paying attention to. 

"It's not as though criminal hackers from Russia are going to overdose us on insulin," Lanterman said. "In order to compromise one of these devices, you need proximity... That being said, you shouldn't be able to do that. You shouldn't be able to interact with my insulin."

The devices that are vulnerable are: 

-MiniMed 508 Pump.

-MiniMed Paradigm 511, MiniMed Pardigm 512/712, MiniMed Paradigm 712E, MiniMed Paradigm 515/715, MiniMed Paradigm 522/722, MiniMed 522K/722K.

-MiniMed Paradigm 523/723 (Software 2.4A or lower), MiniMed Paradigm 532k/723k (Software 2.4A or lower).

-MiniMed Paradigm Veo 554/754 pumps (Software 2.6A or lower), MiniMed Paradigm Veo 554CM/754CM  (Software 2.6A or lower).

Medtronic recommends U.S. patients consider changing to a newer model insulin pump with better security. The company, which sent a letter notifying insulin pump users of the alert, also urges customers to view the Medtronic diabetes customer support page.