The home at the Wodonga Gardens Retirement Estate was targeted between 11pm on Sunday and 9am on Monday, with the incident discovered on Monday morning.

Detective Leading Senior Constable Ash Eames said the property had been accessed through an unlocked rear door.

"Someone has entered her house, taken her purse and dropped it in the driveway after taking $100 out," he said.

"If anyone knows anything about it they can call the Wodonga Crime Investigation Unit.

"We would encourage people to secure their addresses at night by locking their back doors."

IN OTHER NEWS:

The retirement estate's chief executive Jane Monk said the victim was doing well after the incident.

"This is very, very rare," she said.

"One of the benefits of living in a retirement community is there tends to be lower incidence of these types of crimes happening.

"We're looking to support the resident."

The property is covered by fences, with the gates constantly closed during the coronavirus pandemic, and each property has its own fence.

"We absolutely encourage residents to keep their doors and windows locked, as you would in the broader community," Ms Monk said.

"It's a very rare and unfortunate incident.

"The estate is generally very secure."

Anyone with information can contact (02) 6049 2600 or 1800 333 000.