"I'm not sure Facebook is trying to do anything evil," he said. "I think they're doing what people want from Facebook."
However, Tiller pointed out that there were several flaws in how the social media giant implemented the facial recognition tool -- another example, he said, of having "more things that require opting out of instead of opting into."
Tiller said that users losing that control over what tagged photos of them are on the network "makes it unsettling."
"It frankly spooks people that the program can figure out who they are," he said. "[The tool is] another way of connecting the dots of who I am and where I'm going, who I'm hanging out with...there's no way to say, 'I don't want that.'"
Tiller said this new feature ultimately creates a "digital fingerprint" of you, and the biometric component "can't be ignored." He said this also raises concerns over if this tool could lead to a new kind of cyberstalking.
"The concept of identifying someone by their face allows you to increase the granularity information you can use... as a stalker or an attacker," Tiller said.
Facebook said on its blog that the idea behind Tag Suggestions was to make photo tagging easier.
"Every day, people add more than 100 million tags to photos on Facebook," the blog post said. "Tags make photos one of the most popular features on Facebook."
How to Turn off the Facebook Facial Recognition Tool
1. Log onto your Facebook profile and click on "Account" in the upper right hand corner.
2. From the drop down menu, click on "Privacy Settings."
3. Click on "Custom." At the bottom of the Custom menu, click on "Customize Settings."
4. Scroll down to the "Things others share" section to "Suggest photos of me to friends." Click "Edit Settings."
5. You should get a pop-up window that says "Photos: Suggest Tags." It will be enabled by default. Click on the drop-down menu and select "Disabled" to turn off the facial recognition tool. Click OK and your setting will be saved.