While one of the Aon Center’s primary goals is to maintain a safe working environment, substantial responsibility for security must rest with each tenant. All entrances and exits to your suite should be locked when you leave the Building. During the day, offices, desks and entrance areas should never be left unattended. Valuables, such as purses and wallets, should be locked up or taken along when an employee leaves his or her work station. Valuables should also be kept safe from public lobby areas and elevators.