Abstract: An example method of performing interactive videogame verification using cryptographically protected transaction records includes: receiving, by a videogame server, from a first videogame client device, a first transaction record reflecting a first set of events associated with an interactive videogame session, wherein the first transaction record is cryptographically signed by a first private cryptographic key associated with the first videogame client device; receiving, from a second videogame client device, a second transaction record reflecting a second set of events associated with the interactive videogame session, wherein the second transaction record is cryptographically signed by a second private cryptographic key associated with the second videogame client device; and validating the first transaction record based on the second transaction record.

Abstract: An example method of performing interactive videogame verification using cryptographically protected transaction records includes: receiving, by a videogame server, from a first videogame client device, a first transaction record reflecting a first set of events associated with an interactive videogame session, wherein the first transaction record is cryptographically signed by a first private cryptographic key associated with the first videogame client device; receiving, from a second videogame client device, a second transaction record reflecting a second set of events associated with the interactive videogame session, wherein the second transaction record is cryptographically signed by a second private cryptographic key associated with the second videogame client device; and validating the first transaction record based on the second transaction record.

Abstract: An example method of performing interactive videogame verification using cryptographically protected transaction records includes: receiving, by a videogame server, from a first videogame client device, a first transaction record reflecting a first set of events associated with an interactive videogame session, wherein the first transaction record is cryptographically signed by a first private cryptographic key associated with the first videogame client device; receiving, from a second videogame client device, a second transaction record reflecting a second set of events associated with the interactive videogame session, wherein the second transaction record is cryptographically signed by a second private cryptographic key associated with the second videogame client device; and validating the first transaction record based on the second transaction record.

Abstract: A protection system for a telecommunications network includes an evaluation engine that receives information about threats from user devices using the network and determines a threat level to the network. Threats to the network are mitigated based on the determined threat level.

Abstract: A protection system for a telecommunications network includes an evaluation engine that receives information about threats from user devices using the network and determines a threat level to the network. Threats to the network are mitigated based on the determined threat level.

Abstract: A cardholder in a book form, comprising a plurality of units each having two pockets, wherein each pocket is sized to hold a card, comprises an alarm circuit in its cover or in a special compartment. Conductive strips/traces on both sides of the walls of said pockets are configured such that if the cardholder is closed while at least one of the pockets is empty, said traces creates a closed electric path between terminals of said alarm circuit and the alarm is activated. However, if the book shaped cardholder is open such that an empty pocket is exposed—the alarm is deactivated.

Abstract: A cardholder in a book form, comprising a plurality of units each having two pockets, wherein each pocket is sized to hold a card, comprises an alarm circuit in its cover or in a special compartment. Conductive strips/traces on both sides of the walls of said pockets are configured such that if the cardholder is closed while at least one of the pockets is empty, said traces creates a closed electric path between terminals of said alarm circuit and the alarm is activated. However, if the book shaped cardholder is open such that an empty pocket is exposed—the alarm is deactivated.