Given the task definition and input, reply with output. In this task, you are given a set of context paragraph and some supporting facts to answer a question. Your task is to generate answer for given question based on set of context paragraphs and supporting facts.

Context_1 : OPSWAT, founded in 2002, is a global cyber security company that provides security solutions for enterprises. OPSWAT technology is used by over 1,000 organizations worldwide. OPSWAT aims to eliminate security risks from data and devices coming into and out of an organization. Context_2 : HDIV is a free and open-source Web Application Security Framework that eliminates or mitigates web security risks for some of the most used web frameworks, maintaining the API and the framework specification, such as Spring MVC, Grails, JSTL, Struts 1, Struts 2, JavaServer Faces, ASP.NET MVC, Web Forms, Symfony. HDIV is released under the Apache 2.0 license. Context_3 : On the morning of 18 September 2014, police in Australia carried out the biggest counter-terrorism operation in the nation's history, with over 800 heavily armed officers targeting households in the cities of Sydney and Brisbane. It came days after the Australian government raised the terror threat from medium to high due to concerns about Australian citizens returning to the country after fighting with the Islamic State of Iraq and the Levant (ISIL). Following the raids, two people were charged, one with terrorism offences and the other for possession of an unauthorised firearm.. One of the two arrestees became one of only two men on remand at the highest security prison in Australia, as he is considered an "AA" security risk. Context_4 : Dr. Safety is an Android mobile security technology by Trend Micro that blocks virus, malware, spyware, malicious phishing attacks, unwanted spam calls for free, and also protects against privacy security risks and any data theft on a lost device. Context_5 : "Domain Based Security", abbreviated to "DBSy", is a model-based approach to help analyse information security risks in a business context and provide a clear and direct mapping between the risks and the security controls needed to manage them. A variant of the approach is used by the UK government's HMG Infosec Standard No.1 technical risk assessment method. DBSy is a registered trade mark of QinetiQ Ltd. Context_6 : Macon State Prison is located in Macon County, southwest of Oglethorpe, Georgia on approximately 300 acre . It was constructed in 1993 and opened in 1994. It is a close security prison, meaning it is a very high security prison. The prison houses inmates deemed the highest potential security risks by the Department of Corrections. Context_7 : Supermax (short for: super-maximum security) is the name used to describe "control-unit" prisons, or units within prisons, which represent the most secure levels of custody in the prison systems of certain countries. The objective is to provide long-term, segregated housing for inmates classified as the highest security risks in the prison systemthe "worst of the worst" criminalsand those who pose a threat to both national and global security. Context_8 : Taint checking is a feature in some computer programming languages, such as Perl and Ruby, designed to increase security by preventing malicious users from executing commands on a host computer. Taint checks highlight specific security risks primarily associated with web sites which are attacked using techniques such as SQL injection or buffer overflow attack approaches. Context_9 : The High Risk Management Centre (commonly called the SuperMax) was opened in September 2001. This was the first such facility in Australia and makes the Centre the highest security prison in Australia. Context_10 : Security controls are safeguards or countermeasures to avoid, detect, counteract, or minimize security risks to physical property, information, computer systems, or other assets. fact_1 : One of the two arrestees became one of only two men on remand at the highest security prison in Australia, as he is considered an "AA" security risk. fact_2 : The High Risk Management Centre (commonly called the SuperMax) was opened in September 2001. Question: When was Australia's prison for "AA" security risks opened?
September 2001