The 34-year-old spoke out about the recently-leaked images featuring him and Zoe Saldana battling Benedict Cumberbatch.
"It is awesome. We've been working on that sequence for five days," Quinto told IFC.
The actor went on to say that he feared that he would be reprimanded for the leak.
"I was afraid they were going to think it was me who leaked that picture but it wasn't," Quinto said.
"The picture leaking did not go over so well," he continued. "They go to great lengths to preserve security."
Quinto recently praised the cast additions to the highly-anticipated sequel, which include Cumberbatch and Alice Eve.
Star Trek 2 opens in the US and UK on May 17, 2013.