Maximum security prisons and supermax prisons are grades of high security level used by

prison A prison, also known as a jail, gaol (dated, standard English, Australian, and historically in Canada), penitentiary (American English and Canadian English), detention center (or detention centre outside the US), correction center, corre ...

systems in various countries, which pose a higher level of

security" \n\n\nsecurity.txt is a proposed standard for websites' security information that is meant to allow security researchers to easily report security vulnerabilities. The standard prescribes a text file called \"security.txt\" in the well known locat ...

to prevent prisoners from escaping and/or doing harm to other inmates or security guards. *For the United States, see Incarceration in the United States § Security levels *For Canada, see Correctional Service of Canada § Security classification of offenders *For other prison systems, see Prison § Security levels

See also