FISHERS, Ind. -  

Fishers police are warning homeowners about a phone scam that could be used to target homes for robberies.

"These calls are automated calls inquiring about an alarm system monitored by the Fishers Police Department," Officer Tom Weger said.

The problem is that the Fishers Police Department has never offered service monitoring home security systems.

The automatic call asks homeowners to press one if they are interested, that's when they unknowingly begin giving out personal, sensitive information.

"By pressing one, the resident may indicate that they do not have an alarm system," Weger said.

Investigators don't know who's behind the possible scam, but they warn that burglars would be very interested to learn which homes are protected by an alarm and which homes aren't.

"I just told them I wasn't interested and hung up the telephone," said Fishers homeowner Max Brattain, who recently received a call that might have been tied to the scam.

Police sent out email alerts to Fishers residents, urging them not to give out personal information to any cause without first verifying its legitimacy.

Patty Hatcher said she got one of those alerts, and routinely takes measures to keep burglars away.

"I make sure that my garage door and my locks are always locked and my windows are always locked… leave lights on in the evening," Hatcher said.

Police said anyone who gets one of those suspicious calls offering an alarm monitored by Fishers police should disconnect immediately then give investigators a call and report it.        

Most importantly, don't give out any information, including whether or not the house has an alarm system.