HOUSTON -

People who live in the Shady Acres neighborhood are on high alert after a man posing as a technician was walking door to door, trying to gain access inside their homes.

"You really want to trust people, and in this day and age, sometimes you really can't," said resident Stephen Parsons.

He and his family moved into the Shady Acres community about six months ago.

"Everybody is friendly, we really enjoy it," said Parsons.

But last week something strange happened. A man dressed as an alarm security technician rang his doorbell.

"He had a clipboard and a very official shirt on, he was ringing doorbells and he let us know that our security system would be out of date soon, because it was wireless and it wouldn't interact with whatever wireless services were outside the house," Parsons said.

The man told Parsons he worked for a company who made components for wireless security systems. And that he needed to check those components located in the closets inside the home.

"Within just a few seconds of talking to him, I decided there was no way I was going to let him in the house," Parsons said.

Parsons knew something was wrong and denied him access. He watched as the man moved on to his neighbors' homes, seeing if they would let him inside. That is when he called his current security provider Northstar to find out more information.

"They told us that they would not send somebody who was not affiliated with their company to fix their system," said Parsons.

Now Parsons is worried this man may be targeting other neighborhoods.

"I wouldn't be surprised if he is at a neighboring community still walking around," he said.

If ever run into a similar situation, you should call your provider before letting anyone inside your home.