xfinity wants my bank login information and account numbers giving access to all of my accounts.

I tried to change my bank account for autopay online and was not allowed to change unless I gave my bank account numbers AND my bank login information (seems to be legit).  This gives Xfinity/Plaid total access to all of my accounts.  this is via PLAID which xfinity says is safe.  Xfinity also states that they are not responsible if any information or money is compromised.  This is NOT A GOOD IDEA!!!  

Any thoughts of the safety / wisdom of this Xfinity requirement?