R7800 Automatic Firmware Update

My wifi locked up and 0n 5/19/2018. After gaining acces to the router I found the following in the "logs": [Initialized, firmware version: V1.0.2.46] Saturday, May 19, 2018 11:36:44. This happened automaticlly with out any action on my part. There is no setting I can find that allows for auto firmware updates.  Did anyone else have this same experience? I am concerned that I may have been hacked some how. 

Thanks in advance