It means you have 45 minutes on your clock and you get 45 seconds added after each move. Since discussion of cheating is generally not allowed on the forums, I can't answer the second question, sorry.
What is 45|45 or 60|60 chess?
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How can I get an answer to my second question?
Nov 25, 2016
0
#4
It lets you cheat because of the extra time. It's technically impossible to lose! (unless you get checkmated, or you resign 
Please understand this thing. There is a closing bracket on the happy emoji. I hope you get it now.
Nov 25, 2016
0
#5
Discussions of cheating, potential cheating or cheat detection are not allowed on the general forums. If you would like to have that discussion, join the following group.
https://www.chess.com/groups/home/cheating-forum
What is 45|45 or 60|60 chess?
If it's an increase in time/move limits does it bring more chances for cheating?