I am quoting verbatim from the Wiki listing for Libor. Can't really trust Wiki but then again you can't trust the banks either. What I find most interesting is "money" is now the "get out of jail free" card. Looks like if you cough up enough money - not YOUR money of course - you can settle a criminal complaint. Good to know. The following fictional article is for your amusement:
"The London Interbank Offered Rate is the average interest rate estimated by leading banks in London that they would be charged if borrowing from other banks.[1] It is usually abbreviated to Libor ( /ˈlaɪbɔr/) or LIBOR, or more officially to BBA Libor (for British Bankers' Association Libor) or the trademark bbalibor. It is the primary benchmark, along with the Euribor, for short term interest rates around the world.[2][3]
Libor rates are calculated for ten different currencies and 15 borrowing periods ranging from overnight to one year and are published daily at 11:30 am (London time) by Thomson Reuters.[4][5] Many financial institutions, mortgage lenders and credit card agencies set their own rates relative to it. At least $350 trillion in derivatives and other financial products are tied to the Libor.[6]
In June of 2012, multiple criminal settlements by Barclays Bank revealed significant fraud and collusion by member banks connected to the rate submissions, leading to the Libor scandal."