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Access control lists (ACLs) are lists of users and groups, with their specific permissions. They offer a more flexible way of providing discretionary access control. ACLs are implemented differently on different systems. For example, in a UNIX-based trusted system that uses the UNIX security kernel developed by Atlanta-based Secure Ware, you’d protect PAYROLL with ACLs in the form:
A team of organized criminals are installing equipment on legitimate bank ATM’s in at least 2 regions to steal both the ATM card number and the PIN. The team sits nearby in a car receiving the information transmitted wirelessly over weekends and evenings from equipment they install on the front of the ATM (see photos). If you see an attachment like this, do not use the ATM and report it immediately to the bank using the phone on the front of the ATM.