Why do people think she was the one behind the mask? Possible Spoilers

[ArashiStorm]

In the newest episode of Boruto it showed a mask man or female behind the recent attacks and some how people think Sumire was the one behind the mask.

 

[Misо]

I actually really wanna know as well

 

[123fire]

Watch sawyer7mage's video . He explained the clues and hints that she is the one

 

[Ababeel]

I don't know if it's her or not. However, it makes sense that the one behind the mask is a known character. Otherwise, what's the point of covering his/her face?