But many people are saying the footage could be fake.
Social media users commented on the video saying the video "looks quite fake" and "the bear would have gotten her easily."
But according to The Independent, Murphy has insisted that the video is real.
"Yes the video is real," she told The Independent. "I didn't know anything was happening at the time, but it's so scary to watch it back now. I think I'll stick to the runs with my friends from now on."
Snopes, a website that aims to validate viral stories and Internet rumors, has also questioned whether or not the video is real.
Here are the reasons why people are suspicious:
The bear seems to be the same distance behind the snowboarder while it's in the frame, and it's hidden before each time it comes back into view.
The snowboarder isn't s first travelling very fast. The bear should be able to catch up to her.
The video itself is too short and uneventful to have filmed without the bear.
The bear roars loudly and should have been heard by Murphy. Plus, "the audio is unrealistic," and the bears growls seem to be at the same volume at every distance from the snowboarder. "It's also unlikely that the camera could capture such clear audio of the bear galloping while Murphy made her way down the hill," according to Snopes.
No wind interference can be heard.
The bear appears to be a computer-generated image.