William Hill offers the highest security for the player's financial and personal data. For that reason, they use Secure Socket Layer that protects all information submitted over the Internet. All the games at William Hill are brought by reputable software providers so that by itself means that the games are regularly TRUE for fairness.
When you create your account at William Hill you need to select a secure username and password that you should keep for yourself only. All data that is sent to the casino is stored and encrypted and no one from the outside can reach the database where all this information is stored.
At William Hill, you can insure your accumulator bets now, and this is how it works. If you have placed an accumulator with at least 5 selections and only one of them loses, your stake will get refunded. To be eligible for this insurance you must select bets with odds of 1.20 or higher. The highest amount you can receive for this insurance is $50. And the good news is that now you can combine 2 or 3 accas, and if each accas lose by a selection, the money will be divided by the loser accas.