Naperville police are warning residents about several phone and email scams in which victims are threatened with arrest or fines if they do not provide credit card information.
In one such scam, residents have reported receiving "past due" utility phone calls from a number in area code 818. Police said any calls from the city about utilities will show up on caller ID as "City of Naperville," almost always from the number (630) 420-6059.
In other scams, the perpetrators pose as a "grandchild" needing money after being arrested or a Microsoft employee who recently has remotely scanned the victim's computer and is offering monitoring software. Police warn people to confirm any information about grandchildren with family members and never to provide the caller with credit card or financial information.