Getting computer security right in a school is much trickier than doing so in a business. Australias own one laptop per child programme is making K-12 computer security even harder. Some schools are seeking refuge in so-called cloud computing, or software as a service (SaaS), at least for parts of their network infrastructure such as web and email. Cloud email relies on the idea that you outsource the ownership and operation of your school’s email to a third party to Microsoft, perhaps, or to your ISP, or Google.”]
Source: https://nakedsecurity.sophos.com/2009/10/16/computer-security-in-schools/