公开(公告)号：US20220108701A1

公开(公告)日：2022-04-07

申请号：US17491363

申请日：2021-09-30

Applicant: PINDROP SECURITY, INC.

Inventor： Payas GUPTA ,  Terry NELMS, II

IPC: G10L17/04 ,  H04M3/51 ,  G10L25/27

Abstract: Embodiments described herein provide for a voice biometrics system execute machine-learning architectures capable of passive, active, continuous, or static operations, or a combination thereof. Systems passively and/or continuously, in some cases in addition to actively and/or statically, enrolling speakers. The system may dynamically generate and update profiles corresponding to end-users who contact a call center. The system may determine a level of enrollment for the enrollee profiles that limits the types of functions that the user may access. The system may update the profiles as new contact events are received or based on certain temporal triggering conditions.

公开(公告)号：US20210281680A1

公开(公告)日：2021-09-09

申请号：US17317559

申请日：2021-05-11

Applicant: PINDROP SECURITY, INC.

Inventor： Payas GUPTA ,  Terry NELMS, II

IPC: H04M3/436 ,  H04M3/22 ,  H04M3/42 ,  H04M19/04

Abstract: Disclosed herein are embodiments of systems, methods, and products comprises an authentication server for caller ID verification. When a caller makes a phone call, the server receives the phone call and verifies whether the phone call is from a registered device associated with the phone number. The server queries the registered device to retrieve one or more current call states via an authentication function on the registered device. The server compares the states and/or state transitions to the observed states and/or state transitions of the phone call. If the registered device states and/or state transitions match the observed phone call states and/or state transitions, the server verifies that the phone call is from the registered device and not some imposter's device. If there is no such match, the server rejects the phone call before the call phone is connected or terminates the phone call after the phone call is connected.

公开(公告)号：US20200259954A1

公开(公告)日：2020-08-13

申请号：US16859370

申请日：2020-04-27

Applicant: PINDROP SECURITY, INC.

Inventor： Payas GUPTA ,  Terry NELMS, II

IPC: H04M3/436 ,  H04M3/42 ,  H04W4/16 ,  H04W12/06

Abstract: In an illustrative embodiment, a user device may block all the phone numbers used by an enterprise. When an enterprise wants to call the user, the enterprise may notify the user device through a separate secure channel that an enterprise phone number is in the process of making a phone call to the user device. The secure channel may include an authentication server that may request the user device to unblock the enterprise phone number. An incoming phone call from the enterprise phone number therefore can be trusted. After the phone call is terminated, the user device may again block the enterprise phone number. An attacker may not have access to the authentication server and a phone call from the attacker with a spoofed enterprise phone number (now blocked) may be dropped by the user device.