Preventing attacks on devices with multiple CPUs
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United States of America Patent
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Sep 9, 2014
Grant Date -
Jan 2, 2014
app pub date -
Jun 29, 2012
filing date -
Jun 29, 2012
priority date (Note) -
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Abstract
Disclosed are systems and methods to utilize two different processing units (e.g., CPUs) to monitor each other. The processing units may have limited visibility and/or read only access to each other to reduce the possibility that one affected processing unit could compromise the second processing unit. Devices containing multiple processing units of different architectures could be configured so that one type of processing unit monitors another type of processing unit. When the processing units are different architectures a single piece of malicious software (malware) is unlikely to affect both processing units. Each processing unit can be configured to detect rootkits and other types of malware on the other processor(s) of the system/device.
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