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 retractable writing instrument may include a barrel having a front opening, a nib for moving through the front opening of the barrel between an extended position and a retracted position, a cartridge for receiving the nib and for folding a supply of ink, and a seal assembly received within the barrel through which the nib is passable. In a number of embodiments, when the nib is in the retracted position, the seal assembly is biased closed to seal the front of the retractable writing instrument. In addition, an outer surface of the cartridge may contact the seal assembly to form a rear seal such that a tip of the nib is positioned within the body member between the two seals. Accordingly, in these embodiments, the nib is sealed from ambient air when in the retracted position, thereby minimizing evaporation of ink from the cartridge. IN addition, the nib may be urged through the seal assembly while moving to the extended position to open the front of the retractable writing instrument.