Re: Two factor of sorts can work here
"I don't do company on-line banking but I presume there must be some emulation of the way cheque signatures have traditionally been done.
Cheque up to £x? One signature.
Cheque over £x? Two signatures." etc
I am, and have been for a number of years, on various sporting club committees. One time about 10 years ago an unscrupulous treasurer stole from us in this manner :/ Referred to the Police and dealt with of course.
Now we have a facility similar to what you describe when two signatories must login to send the transaction and one to concur and confirm it. It works well.