L09 Computer controls

L09 Computer controls - ComputerControls 1 GeneralControls...

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Computer Controls 1
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General Controls Security Access Personal devices Laptop loss Laptop theft (see page 14) Segregation of MIS duties Uptime Fault tolerance Backup Contingency planning 2
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Security - Firewalls Most security breaches are internal 3
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Security - Anti-Virus Firewall does not protect against viruses Need anti-virus software Also Anti-spyware Restrict form input to prevent scripting  attacks 4
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Security – Access I have too many passwords Example biometric devices http://www.biometricsdirect.com/   http://www.secugen.com/products/ph4.htm False accept and False reject (see: Secugen technical specifications, FAQs)   Biometric attack http://www.securityfocus.com/news/6717 5
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Japanese Researcher Fakes  Fingerprints to Fool ID Systems   The first set of experiments  used fake fingers formed  when gelatin was poured into  a mould created by pushing a  finger into a malleable plastic  often used by model makers.  The fingers created this way  fooled the fingerprint readers  80% of the time. CNET News.com; BBC News May 17, 2002 6
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Liveness Test Measures Properties  Physical : Weight, density,  elasticity Electrical : capacitance,  resistance, impedance, Visual:  colour, opacity, appearance,  shape Spectral : transmittance,  reflectance, absorbance Body fluid : oxygen, blood  constituents, DNA Involuntary signals Pulse Blood pressure Blood flow   Heat Transpiration   Perspiration ECG  – electrical signals  generated by the heart EEG  – brain wave signals 7
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Do you really want companies storing your 
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This note was uploaded on 06/14/2011 for the course ACCT 404 taught by Professor Tuttle during the Spring '11 term at South Carolina.

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L09 Computer controls - ComputerControls 1 GeneralControls...

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