Viber ghost messages

[Windows Central Question]

I was just about to send a message on viber when it started typing message by itself,very fast letter by letter in front of my eyes.I had no control and no button reacted when I tried to turn it off or stop it...the message had no previous history on my phone,I never typed anything similar...I had to restart my phone 3 times to gain control again...please help!!!could my viber be haacked?