Techniques related to preventing unauthorized access to a computing device are disclosed. The techniques include a machine-readable medium, on which are stored instructions, comprising instructions that when executed cause a device to identify a host hardware configuration, obtain a policy based on the host hardware configuration, monitor two or more memory transactions based on the policy, identify, based on the memory transactions, a memory transaction pattern, wherein the memory transaction pattern is associated with an attempt to obtain unauthorized access to the device, and take one or more actions to interfere with attempts to obtain unauthorized access to the device based on the policy.