1. A processor-implemented method, comprising: obtaining a network security assessment graph having a set of network elements, each network element from the set of network elements having a probabilistic network security measure, the probabilistic network security measure for each network element from the set of network elements being calculated at least in part based on a threat indicator; obtaining a factor matrix representing a set of joint threat and safety probabilities for the set of network elements, the factor matrix including a factor indicative of a correlation between a pair of network elements from the set of network elements; receiving an indication of a change relating to the network security assessment graph; determining a group of influenced network elements from the set of network elements in response to the change related to the network security assessment graph based on the factor matrix; dynamically updating the factor matrix for the group of influenced network elements; dynamically updating the probabilistic network security measure for each network element from the set of network elements based at least in part on the updated factor matrix and the change related to the network security assessment graph; sending a signal to cause a user interface to render a representation of the probabilistic network security measure of each network element from the set of network elements after the probabilistic network security measure for each network element from the set of network elements has been updated; receiving a modification to a probabilistic network security measure of a network element from the set of network elements in response to rendering the probabilistic network security measures of each network element from the set of network elements; and generating predicted modifications to probabilistic network security measures of each remaining network element from the set of network elements based on the modification to the probabilistic network security measure.