Abstract: System, device, and method of privacy-preserving user-identity verification and re-proofing. A system includes a Tokenization Unit, that is configured to receive from a user a user-submitted biometric data-item of the user; to receive from the user one or more user-submitted data-items of Personally Identifiable Information (PII); to generate an aggregated data-item that includes (i) at least a portion of the user-submitted biometric data-item and (ii) at least a portion of the one or more user-submitted data-items of Personally Identifiable Information (PII); and to perform irreversible one-way cryptographic hashing of the aggregated data-item into an irreversible tokenized data-item that enables user authentication based on biometric data and PII data.

Abstract: Computerized method for verification of user identity and transaction data authenticity, usable in systems having an electronic device that communicates with a remote server. The method includes: (a) receiving user interactions at a non-secure execution environment of the electronic device, reflecting transaction data entered by a user; and transmitting transaction data from the non-secure execution environment to the server; (b) locally authenticating the transaction data and user identity in a secure execution environment of the electronic device; and encrypting transaction data in that secure execution environment, by utilizing a Cryptographic Private Key of the electronic device as encryption key; and transmitting encrypted version of locally-authenticated transaction data from the electronic device to the server.

Abstract: Method and system for authenticating identity of a user of an electronic device and for verifying a authenticity of a transaction that the user submits via the electronic device. A method includes: (a) while the user interacts with input units of the electronic device to enter transaction data, capturing video of the user via a front-side camera of the electronic device; (b) while the user interacts with the input units of the electronic device to enter transaction data, generating at the electronic device an interfering device-based event, a particular vibration pattern, a particular illumination pattern, a particular background audio noise pattern, or other interfering event generated by the electronic device; (c) performing a particular analysis of video content, that was captured while the user interacted with input units of the electronic device to enter transaction data; wherein the analysis checks whether or not the captured video content correctly reflects the interfering device-based event.

Abstract: Systems, and methods of protecting users against cyber-attacks that utilize SIM Swap or Email Hijacking. A method includes: (a) detecting that a user is requested to input his genuine email address into an email address field of an account profile page or an account settings page of a computerized service; (b) inserting, into that email address field of that page, a replacement email address that replaces a genuine email address of the genuine user at that computerized service; and later, (c) automatically monitoring and handling, continuously at a remote server or a remote service, incoming email messages that arrive to that replacement email address of that genuine user and that request the genuine user to perform an elevated-security operation or to reset his credentials for accessing that computerized service.

Abstract: A user interacts with a remote server via an end-user device, and enters transaction data. A user-facing camera of the end-user device captures a live video feed of the interacting user; which is displayed in real time on the screen of the end-user device while the user is filling-out fields and entering transaction data. The concurrent, real-time, video-feed display of the interacting user, near—or as a background layer behind—the fillable fields of the transaction data, deters at least some cyber-attacks or prevents fraud attempts. Optionally, the screen of the end-user device is also continuously shared, over a secure communication channel, via a locally-installed Screen Sharing Module, with a trusted remote server; which performs continuous biometric authentication of the user, and continuously verifies the integrity of user-provided transaction data against locally-collected data and user interactions.

Abstract: Methods of expressing an expression product of interest are provided. Accordingly there is provided a method comprising introducing into a cell a polynucleotide comprising an AimR responsive element operatively linked to a nucleic acid sequence encoding the expression product of interest, and contacting said cell with an AimP peptide comprising an amino acid sequence of XXXXGG/A, wherein said AimP peptide is capable of binding said AimR polypeptide and dissociating said AimR polypeptide from said AimR responsive element. Also provided are articles of manufacture, isolated peptides, polynucleotides and nucleic acid constructs.

Abstract: Methods of expressing an expression product of interest are provided. Accordingly there is provided a method comprising introducing into a cell a polynucleotide comprising an AimR responsive element operatively linked to a nucleic acid sequence encoding the expression product of interest, and contacting said cell with an AimP peptide comprising an amino acid sequence of XXXXGG/A, wherein said AimP peptide is capable of binding said AimR polypeptide and dissociating said AimR polypeptide from said AimR responsive element. Also provided are articles of manufacture, isolated peptides, polynucleotides and nucleic acid constructs.