The South London and Maudsley National Health Service Trust, which provides mental health and substance misuse services for people in South London, as well as specialist mental health services nationally, has awarded an IT security contract to CRYPTOCard to ensure patient data is only accessed by qualified people. South London and Maudsley National Health Service Trust provides mental health and substance misuse services to people of all ages living in the London Boroughs of Croydon, Lambeth, Southwark and Lewisham. They also provide substance misuse services to the populations of Bexley, Greenwich and Bromley and specialist mental health services to adults and children from across the UK. Laws such as the Mental Health Act and the Data Protection Act mean that the trust, which employs 4,500 people, has to demonstrate strict standards of privacy and a high level of IT security to the government. The KT-1 key chain tokens work by giving staff passwords, which expire after just one use, making them redundant to potential hackers.