Abstract: Embodiments of the invention are directed to a system, method, or computer program product for cross-channel network security with tiered adaptive mitigation operations. In this regard, the invention is structured for dynamic detection of security events associated with network devices and resources, and triggering real-time mitigation operations across a plurality of resource channels. The invention provides a novel method for employing activity data to construct and implement mitigation actions for de-escalating authorization tiers that are adapted to the specific attributes of the activity data, in order to prevent security exposure associated with the activity. Another aspect of the invention is directed to determining whether to continue the tiered adaptive mitigation actions and/or trigger a security proceed signal.

Abstract: A process for making alkylene carbonate by the reaction of carbon dioxide and an alkylene oxide of the formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are one or more of hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, allyloxy, chloroalkyl, and aryloxy to produce the corresponding carbonate, which comprises:(a) providing a homogeneous liquid phase reaction zone in which the predominant material therein is the alkylene carbonate;(b) providing a catalytic amount of an alkylene oxide carbonation catalyst to said liquid phase;(c) having dissolved in said liquid phase sufficient CO.sub.2 to provide a molal amount therein which exceeds the molal amount of the catalyst;(d) providing a CO.sub.2 pressure in the reaction zone of between about 150 psig and about 750 psig;(e) maintaining a sufficient amount of the alkylene oxide in the reaction to maintain the pressure and temperature thereof;(f) maintaining the reaction zone at a temperature at which the alkylene oxide and CO.sub.